Step By Step Origami Knife. Unfold and fold the same corner so it runs directly along the middle. Then fold the paper in half again to make a smaller triangle and unfold.

Step one take a regular piece of paper and fold it in half long wayshot dog style as the little ones would call it and unfold so you have a nice crease. This is the first instructable on how to make an origami flip knife, which of coarse can flip in and out.it is fairly simple and only needs a square sheet of. Learn about topics such as how to fold an origami star (shuriken), how to make a paper kunai knife, how to make a sword out of paper, and more with our.