Need to spice up your boring living room? Here’s a fully controllable, 8×8 LED matrix built into a coffee table. It’s built using foam, 64 RGB LEDs, and a sheet of diffusion gel (a stage lighting product). The whole thing is driven by a “Rainbowduino” with input from a processing sketch. Check out the full project details and more information on the Rainbowduino system.[Link]