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How to Make a Paper Kunai Knife

Last Updated: February 21, 2024

wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. To create this article, 80 people, some anonymous, worked to edit and improve it over time. This article has been viewed 586,028 times. Learn more...

Kunai are believed to be derived from a type of gardening tool, but now are famously known as the preferred knives of ninjas [1] X Research source , made popular in Japanese Animes and Mangas such as Naruto. Now you can make them yourself out of paper!

Folding the Blade

  • Gather the rest of your materials. These include some tape, scissors (to cut the paper into squares), and, optionally, a small, heavy object, like a penny.

Making the Handle

  • Optionally, before flattening the extra length of the tube, cut a chopstick to the length of the handle and stick it inside to improve the stiffness of the handle.

Finish the Kunai Knife

Community q&a.

Community Answer

  • When doing this Origami Paper is recommended, but any piece of paper will suffice when making the Kunai. Thanks Helpful 1 Not Helpful 0
  • On step 6, make sure that the corner is sharp for a sharp knife. Thanks Helpful 1 Not Helpful 0
  • Instead of tape you can use a glue gun. Thanks Helpful 1 Not Helpful 0

Tips from our Readers

  • If the knife flops over instead of sticking upright when thrown, experiment with different weighted fillings like pennies or metal washers to improve balance.
  • For easier folding, use origami paper which already starts as a colored square and doesn't need excess trimming. Construction paper can also work too.
  • Display your finished kunai knives under glass or plastic on a wall if possible, when not playing ninja battles. Keeps them looking nice longer!
  • To make a sturdier handle, insert a chopstick or pen barrel before wrapping with paper. This helps prevent bending and breaking over time.
  • Go slowly and firmly when making folds — don't wrinkle or rip the paper. Unfold and redo any messy folds for a crisp finished look.

how to make a paper ninja sword

  • Fold and read the instructions carefully, one little mistake can change a lot. Thanks Helpful 84 Not Helpful 17
  • Be wary of paper cuts. Thanks Helpful 71 Not Helpful 27
  • Do not aim at people. Thanks Helpful 62 Not Helpful 41

Things You'll Need

  • 2 pieces of paper
  • A penny or a similar object to add extra weight to make throwing easier.

You Might Also Like

how to make a paper ninja sword

  • ↑ http://www.trueswords.com/swords-kunai-knives-c-4_97.html

About This Article

Kunai knives are known for being used by ninjas and assassins. To make a paper one, you’ll need to fold 1 piece of paper into the shape of the blade, then roll a separate piece of paper into the handle. To make the blade, fold a square of paper in half diagonally twice to make a small triangle. Then, unfold it once and fold the edge of 1 side of the paper to the middle. Keep folding until you can’t fold anymore, then tuck the extra paper at the bottom inside the blade. It should resemble a tall, skinny triangle. To make the handle, simply roll a larger square paper into a thin tube. Insert the end into the open bottom of the blade and secure it with a piece of tape. To learn how to make a notch at the bottom of your handle, read on! Did this summary help you? Yes No

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Like origami tell your friends, most popular origami, origami paper.

We use standard size 6 inch x 6 inch (15cm x 15cm) square origami paper for this site unless stated otherwise. If you can, use different types of origami paper to change the look of the finished origami and have fun with it!

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Origami sword.

Made this origami? Comment and Submit your photo using the comment box at the end of this page!

Easy Origami Sword Step 1: Start by cutting a regular size 6 inch x 6 inch (15cm x 15cm) square origami paper into two. We'll be using both halves of the paper as this origami consists of 2 parts.

Easy Origami Sword Step 2: With one half of the paper, fold it in two on the horizontal axis. Crease well and unfold.

Easy Origami Sword Step 3: Fold the right side approximately 3cm (~1.25 inch) to the left.

Easy Origami Sword Step 4: Make a small mountain fold (~2mm) on the top part.

Easy Origami Sword Step 5: Flip paper over. Fold both the top and bottom halves to the center.

Easy Origami Sword Step 6: Make 2 diagonal folds on the right side.

Easy Origami Sword Step 7: Fold paper in half.

And this completes the first half of this origami.

Easy Origami Sword Step 8: Start with the other half of the paper. Fold paper in half on both the horizontal and vertical axis. Crease well and unfold.

Easy Origami Sword Step 9: Fold both the top and bottom halves to the center.

Easy Origami Sword Step 10: Fold the bottom half over to the top.

Easy Origami Sword Step 11: Fold the left side to the center crease.

Easy Origami Sword Step 12: Now we're going to fold the right side over to the left and tuck it in between the layers on the left side.

Easy Origami Sword Step 13: Rotate paper.

Easy Origami Sword Step 14: Make 2 diagonal folds as shown. Crease well and unfold.

Easy Origami Sword Step 15: We're now going to pry open the paper and bring the upper layer over to the left.

Press paper flat to form a triangle at the top and bottom.

Easy Origami Sword Step 16: Make 2 small valley folds as shown.

This completes the 2nd part of this origami.

Easy Origami Sword Step 17: Time to combine the 2 parts! Insert the first part (blade) through the middle of the 2nd part.

and your origami sword is complete! Time for a duel?!

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CraftCue

Step-by-step Instructions to Make an Origami Sword

Fashioning a sword out of an origami paper will have you dueling in no time. And with the step-by-step instructions given in this CraftCue post, you will have not 1 but 2 unique origami swords.

Step-by-step Instructions to Make an Origami Sword

Think Green, Act Green

Instead of purchasing specialty origami paper packs from craft stores, make the models using paper that’s lying around your house―magazines, newspapers, junk mail, used wrapping paper, receipts.

Traditional Japanese origami requires you to use square sheets of paper to build a variety of models. These papers come in different colors, prints, and patterns. But nowadays, the strict rules of using only a square-shaped paper is not mandatory. Today, we can use paper in different shapes, sizes, and patterns to make beautiful models.

And keeping this thought process alive, we decided to compile helpful, step-by-step origami sword instructions that you can follow. So, get your sheets of paper ready, and let’s make some swords.

  • Valley Fold – Illustrated as the black dashed line, when you make a valley fold, the paper forms a V shape.
  • Mountain Fold – Illustrated as the white dashed line, the paper looks like a mountain peak ( ^ ) when folded.
  • Flat Fold – Illustrated as the red dashed line, when you make this fold, it cancels the previous fold, valley, or mountain by flattening the folded crease line.

Origami Sword 1

Keeping the traditional Japanese origami techniques intact, we are going to make a wonderful sword. Depending on the size of paper used for this model, you can control how small or large the sword will be.

Origami Sword Paper Front and Back

Try to use a double-sided paper while creating the sword as it gives the model more depth. Once the sword is ready, you will see exactly what we’re talking about.

Origami Sword Step 1

Keeping the front side of the paper facing down, make a horizontal valley fold on the rear side of the paper.

Origami Sword Step 2

Unfold the paper and make a vertical valley fold on the same side of the paper.

Origami Sword Step 3

Unfold the paper and flip it over so that the front side of the paper is facing you.

Origami Sword Step 4

On the front side of the paper, make a diagonal valley fold. This will be done by folding the top-left corner of the paper down and placing it over the bottom right corner of the paper.

Origami Sword Step 5

Unfold the paper and make another diagonal valley fold. This time, we will fold the bottom-left corner of the paper and place it over the top-right corner.

Origami Sword Step 6

Unfold the paper and get ready to turn the paper in such a way that it resembles the diamond shape.

Origami Sword Step 7

Make 2 valley folds on either side of the paper.

Origami Sword Step 8

Once you’ve made the valley folds, turn the model over.

Origami Sword Step 9

Once the model is turned over, make 2 vertical valley folds.

Origami Sword Step 10

After you make this fold, if you look at the bottom, there will be 2 small triangular pieces of flaps there. Unfold them so they are sticking out towards the side of the model.

Origami Sword Step 11

Make 2 valley folds with these small triangular sides.

Origami Sword Step 12

In this step, you need make a valley fold and then a mountain fold. We have distinguished both these folds using 2 separate (black and blue) colored lines.

Origami Sword Step 13

Now, as instructed in the image above, make a squash fold. It is nothing but a valley fold, a mountain fold, and a flat fold. It has been illustrated by steps 1 to 3 in the image above.

Origami Sword Step 14

After you have made 2 squash folds on either side of the model, make a horizontal valley fold at the bottom of the sword.

Origami Sword Step 15

Next, we will make a horizontal valley fold and then a mountain fold; illustrated by the black and blue lines.

Origami Sword Step 16

Here, we will make 2 squash folds on either side of the model to complete the shape of the sword.

Origami Sword Final

Turn your model over and marvel at the sword as it’s finished.

Origami Sword 2

Even though the traditional Japanese origami doesn’t allow you to cut and/or glue paper together, using the modular or unit origami technique, you can use 2 or more sheets of paper to create a variety of models. Using the same technique, we will learn how to make a paper sword in a few easy-to-follow steps.

Modular Origami Sword Paper

To make this sword, we will be using 2 rectangular-shaped double-sided papers. The first piece of paper will be used to make the sword’s blade, whereas the second one will become the guard.

Modular Origami Sword Step 1

First, we will work with the first piece of paper. Make a horizontal valley fold in the middle of the paper, and unfold it.

Modular Origami Sword Step 2

On the right side of the paper, make a vertical valley fold (going inwards).

Modular Origami Sword Step 3

On the same folded side, make a small mountain fold.

Modular Origami Sword Step 4

Turn the model over so that you can see the center crease line on top. On both sides of the center crease line, make 2 valley folds towards it.

Modular Origami Sword Step 5

At the left-hand corner of the model, make 2 diagonal valley folds.

Modular Origami Sword Step 6

Make a final horizontal valley fold by folding the model in half. With this, we have completed the sword’s blade.

Modular Origami Sword Step 7

With the second piece of paper, we will make 2 valley folds―horizontal and vertical.

Modular Origami Sword Step 8

Make 2 more valley folds with the top and bottom halves of the paper. The folds should meet in the middle, over the center crease line.

modular origami sword step9

Here, we need to make one more valley fold with both the halves.

Modular Origami Sword Step 10

Now that you have a thin strip-like model ready, make a valley fold from the right side that comes somewhat close to the center of the model.

Modular Origami Sword Step 11

From the left side, make a similar valley fold and tuck the right edge in between the layers of the right side.

Modular Origami Sword Step 12

Vertically turn the model.

Modular Origami Sword Step 13

On the top and bottom of the model, make 2 diagonal valley folds, and then unfold them.

Modular Origami Sword Step 14

Open the model from the center and fold it from the top and bottom crease line we made earlier.

Modular Origami Sword Step 15

At the top and bottom of the model, make 2 final valley folds to complete the guard.

Modular Origami Sword Final

Slide the sword’s blade through the middle of the guard to finish the model.

We hope that you could follow the two origami sword tutorials and were explained properly. And even though the swords are made with paper, please be careful while playing with them. If proper care isn’t administered, the pointed edges of the sword can be dangerous.

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How to Make Origami Sword

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Introduction: How to Make Origami Sword

How to Make Origami Sword

hi guys,this is origami sword..would like fighting war with Sword?let's fight!whoo..yea..yawo!Okay..Let's build Sword.

Step 1: Step 1

Step 1

Material for building Sword- •Scissor •Sellotape •Craft Origami Paper Step 1]Start by cutting a regular size 6 inch x 6 inch (15cm x 15cm) square origami paper into two. We'll be using both halves of the paper as this origami consists of 2 colour paper.

Step 2: Step 2

Step 2

With one half of the paper, fold it in two on the horizontal axis. Crease well and unfold.

Step 3: Step 3

Step 3

Fold the right side approximately 3cm to the left.

Step 4: Step 4

Step 4

Flip paper over. Fold both the top and bottom halves to the center.

Step 5: Step 5

Step 5

•Make 2 diagonal folds on the right side. •Fold paper in half.

Step 6: Step 6

Step 6

Start with the other half of the paper. Fold paper in half on both the horizontal and vertical axis. Crease well and unfold.

Step 7: Step 7

Step 7

•Fold both the top and bottom halves to the center.(picture 1 & 2) •Fold the bottom half over to the top.(picture 3 & 4)

Step 8: Step 8

Step 8

Fold the left side to the center crease.

Step 9: Step 9

Step 9

Now we're going to fold the right side over to the left or right and tuck it in between the layers on the left or right side.

Step 10: Step 10

Step 10

•Rotate paper. •Make 2 diagonal folds as shown. Crease well and unfold.

Step 11: Step 11

Step 11

•We're now going to pry open the paper and bring the upper layer over to the left. •Press paper flat to form a triangle at the top and bottom. •Make 2 small valley folds upper and downward

Step 12: Step 12

Step 12

•Time to combine the 2 parts! Insert the first part (blade) through the middle of the 2nd part. •Get the sleotape & Stick 2nd part which is insert upper & downard in middle.

Step 13: Done

Done

we have completed Origami Sword.. if u got problem,comment down.

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  6. How to Make a Paper Kunai Knife (with Pictures)

    1 Get two square pieces of paper, preferably black construction paper. One should be bigger than the other, to be used for the handle. This can be found at any craft store. Gather the rest of your materials. These include some tape, scissors (to cut the paper into squares), and, optionally, a small, heavy object, like a penny. 2

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  12. Step-by-step Instructions to Make an Origami Sword

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