I dropped in at Workbench Projects the other day, and met Pavan, who was working on an LED-covered jar. The entire jar was lined with RGB LED strips, and we were just wondering what to do with the jar to make it fun.
We had some time on our hands, and a pair of speakers. So of course, we decided to make sweet music together with the lights.
There is a one-line algorithmic music thread on the Arduino forums, and I thought it would be a fun experiment to see what that did to the lights. Using three TIP122 for the LED strips (one for R,G,B each), an Arduino Uno and some jumper cables, the video below is what we managed to achieve. All in an hour !