Makey Makey

This thing is so cool! It reminds me of an old school Nintendo controller, with the up/down/left/right controls and two buttons.

You can use the Makey Makey to build all kinds of neat controls for stuff. I used one to turn a Minecraft sword into an actual, working sword for Minecraft. You can whack the sword on a piece of foil, and it will actually make the sword in the game hit stuff. How cool is that? We also have fun using fruit, and other conductive goodies, to turn the Makey Makey into a musical instrument.