This is me doing a Makey Makey project at the library. Makey Makey is an invention kit where you can make your own controller out of anything. You can even make a game controller using a banana! I made a controller that looked like a piano made out of paper and aluminum. But you have to have a aluminum bracelet so it will work. This is because you have to ground the controller. You have to have an alligator clip though. You can buy Makey Makey for $49.95 at shop.makeymakey.com.