How To Make Origami Katana. Sebastian arellano designed a really great origami katana. If you use two coloured paper on the katana itself you get a different colour on the blade and that great pattern on the hilt.

Take the smaller square which youll use to make the blade for your knife and fold it in half diagonally so it looks like a triangle. How to make an origami katana? It is best to use a flat surface when folding origami.