SoundnFury is a small electronics module with a piezo speaker and four red-green LEDs installed on a round Radio Shack circuit board.
SoundnFury provides a compact way to add LEDs and sound to a small robot. One digital output is needed for the piezo speaker, and two outputs each are needed for the LEDs. The LED ground connection is shared.
I am currently using SoundnFury on Why Tri, which you can see in the posted video. I have four of the LEDs connected to PWM outputs of the uBotino board for Why Tri. This will let me do some cool fading effects. I will post some suggested code for the module soon, but I'll bet many of you could come up with even better things to do with it.