How to Make a Paper Kunai Knife

Step-by-Step Guide

1. 1

   Step 1: Get two square pieces of 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. 2

   Step 2: preferably black construction paper.

   It should now look like a triangle. , It should now look like a smaller triangle. , Now, it's a triangle with a crease. , The edge of the side you're folding should line up with the crease.
   
   Flatten the fold down. , Then tuck the extra paper inside the kunai. , This step isn't that necessary.
   
   It just makes a flatter kunai. , Tape it. , You may need to open  the blade a bit to allow the tube to fit. , Make sure there's enough of the tube that you can hold it.
   
   The extra bit, sticking out from your hand, should be flattened.
   
   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. , You'll be making 90 degree folds in the flattened tube, in a counter-clockwise fashion. , One piece of tape connecting the end of the tube to the unflattened section should do it. , Make sure the handle is secure.
   
   Use extra tape here if necessary. , Pennies work well and are cheap.
   
   This step is optional. , Place tape over where the blade and handle meet, enough of it to seal and secure the heavy object in the blade. , You've now got your very own paper kunai knife.
   
   Avoid throwing it at people as you could injure someone.
3. 3

   Step 3: Holding the smaller square

4. 4

   Step 4: fold one corner to the opposite side.

5. 5

   Step 5: Fold a crease halfway through the paper.

6. 6

   Step 6: Unfold the paper.

7. 7

   Step 7: Take one of the short sides of the triangle (not the long one) and fold the edge to the middle.

8. 8

   Step 8: Keep folding repeatedly until you can't fold it anymore.

9. 9

   Step 9: Squish the paper from top to bottom so that it creates a kunai shape (grasp by edges and press).

10. 10

    Step 10: Take the larger square paper and roll it into a thin tube for the handle.

11. 11

    Step 11: Insert the tube into the hole.

12. 12

    Step 12: Wrap your hand around the section of the tube next to the blade.

13. 13

    Step 13: Use a series of folds and reverse folds on the flat side of the tube to create a circle.

14. 14

    Step 14: Tape the circle so that it stays.

15. 15

    Step 15: Tape or staple the tube into the back of the kunai (where the hole is).

16. 16

    Step 16: Take something heavy and put it inside the knife so that it can fly better.

17. 17

    Step 17: Seal the kunai with thick tape so that the heavy object doesn't come flying out when you throw it.

18. 18

    Step 18: Finished.

Detailed Guide

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