3 ideations

1. LiteBall

LiteBall are objects which users can carry around or place in one spot
that emanate light that directly reflects the volume of sound occurring
around the balls.  Users could have several balls placed around their
home or room where they listen to music or just hang out.  The balls
are sensitive to amplitude of sound enough such that a talking voice
would be enough to watch the balls’ glow reflect peaks in volume. 
Another context could be at a concert or show where people are given
the balls to walk around with or attach to their clothing.  All of a
sudden the crowd becomes part of the performance as the intensity of the balls glow increases and decreases with the amplitude of the music, or performance. Color is determined by the axis of movement in which the ball is thrown or moved. Accelerometer + microphone + RGB LED + soft ball skeleton

2. Pulse Bear

A teddy bear, with electrodes on either hand. User holds both paws, and Pulse Bear reads their heartbeat in real-time. Using this EKG data, the bear has LEDs that flash according to this pulse.  User let's go at this point, and using this pulse, dances to the beat of this music (upper body and arms). Pulse Bear dances for about one minute at this pulse. why, though, why dammit?!

3. Drivin' Buddy

A plush Koala who you "kiss" after a night out to see if you are ready to drive. If your blood alcohol content is acceptable, he plays a small game of simon with LEDs and buttons in his paws.  Assuming, you pass three levels of simon AND pass the breathalyzer, Drivin' Buddy announces "Let's go!!".  If either test is failed Drivin' Buddy says "noooooooooooooooooooooo".

4. LightBox :: Revisited

http://jmsaavedra.com/weblog/?p=94