I had made a ninja kit and wanted something that could shoot. I looked for awhile on instructables but couldn't find something that matched what I wanted. I decided to just make it myself and it turned out great so I wanted to share my idea. This is a simple, surprisingly powerful crossbow that is only 12 cm. long.
Step 1: materials
small rubber band,
anything you find necessary to put this together, I used:
hot glue gun (obviously),
needle nosed pliers,