Ninja Set: Katana and Ninja Stars
Made out of .20″ thick plywood, but could easily be made in any other material of a thickness between about .15″ and .25″.
I recommend wrapping the handle in paracord/ fabric/ something else that looks cool- makes a nice aesthetic, and feels better in the hand. Also, wrap the blade in tin foil to give it a metallic appearance.
The version uploaded is 24 inches long. In the hand, it feels like a “short sword.” If you want/ can laser cut a longer version,
There are also 8 ninja stars included, which are supremely cool. Useful for annoying friends and enemies alike.