Noah Hornberger, former Pixar artist, has recently invented a motion-activated musical toy called the Dub Cadet.
The precise rotation and speed of the Dub Cadet determines what pitches play from this MIDI and Arduino-based electronic instrument. It can produce over 3 million possible rhythm possibilities for any one bar of music. By offering intuitive controls, the user can generate an endless variety of musical patterns for hours of creative brainstorming, music education, and fun.
The project is raising funds on Kickstarter, to turn the working prototype into a final product set to be shipped in October 2012.