Transform an Ikea Side Table into a Music Visualizer | Make:

Here’s a table I bought from Ikea and inserted loads of LEDs, electronics, and a microphone into, so I can put it next to the stereo and have a display that reacts and “dances” to the music played. It’s great for parties, and it makes a superb conversation piece. It’s got an Arduino for a brain and uses a minimal amount of current, so you can run it off an iPad charger or any USB port that’s handy.