this is a catapult i build out of paper. Its a very easy build, uses mostly household materials and works well. In this post i have step by step pictures of hour to make it or you can watch the video here.To start off i rolled a sheet of paper around a large dowel. these pieces serve as the building blocks for the catapult so many will be needed
next comes making a small round piece large then the current cylinder and sliding that onto the base cylinder. Next the pivoting arm which rotates is glues onto the small rotation cylinder
next the base is expanded upon and the elastic band is added to the catapult and stretched over the arm
After that a few more structural braces are added to strengthen the design. Then the elastic band is glued onto the catapult arm.