MaKey MaKey

For anyone who's ever wanted to make a banana piano, or a kitty-powered photo booth, or any other sort of strange invention, hope has arrived. The MaKey MaKey ($35 and up) is a new, simple invention kit that makes it easy to make whatever you want. It connects to your computer via USB and uses alligator clips to make a connection to pretty much any conductive object you can think of — paint cans, fruit, or even other people — letting you control websites, apps, or custom programs. In addition, the MaKey MaKey runs on top of Arduino, so when you're ready to step up to more advanced builds it'll be up to the challenge.