This is a pinball machine that I made. For the lighting, I used TRAXON LEDs. They rest under the machine, and are controlled by well... they're controlled by the controller. They can vary in color and brightness. I also made a special K'nex mount for the controller. The pictures and video in the next step show the lights actually changing color. The machine is custom made and fully operational.
Step 1: Different Colors of the Lights
The following video and snapshots show the machine changing colors.