Makey Makey

This little gem is a store favorite for sure. It's an electronic marvel that can make any electrically conductive material into a switch that a computer can then interpret as a keystroke or mouse click. So, what sort of conductive materials are we talking about? How about Play-Dough, water, fruit, humans, tin foil, heavily drawn graphite from a pencil - the list is exhaustive and fun. From there, an infinite number of projects await. Turn your bedroom doorknob into an alarm system, help your cat take photos of itself, make a banana piano. It's just the best.

Check out the video
https://www.youtube.com/watch?v=FUWXAC-2_Y4&t=5s