Alligator clip to an object. When you touch that object, the computer thinks you're pressing the keyboard. By mimicking a keyboard and mouse the Makey Makey lets you control any computer program with everyday objects.
Build your own sensors using foil, pennies, and paper clips just like scientists do. Design your own controller with everyday materials like playdough or graphite pencils. Control your favorite Scratch game while you learn to code. The world is full of conductive objects & materials. Make musical circuits with liquids, fruits, and low cost office supplies. Description from Makey Makey