Conductive Keyboard
[Apple Piano Image Pete Prodoehl]
This project is based on Sjoerd-Dirk Meijer's experiments turning a Shrimp into a MakeyMakey-style USB conductive keyboard. It combines a Shrimp with a handful of resistors and diodes, a chopped USB cable and some jumper wires or crocodile clips. @ShrimpingIt provides a step-by-step wiring guide, and detailed sourcing information for the components you need to make this project.
Because it is constructed directly from component parts, it is cheaper and more educational than a MakeyMakey. See the MakeyMakey promotional video below for examples of what you can do with a conductive keyboard.