A reader on my Magic Clock site made me aware of this TED talk by Massimo Banzi, Co-inventor of the Arduino. He lists some really cool projects ranging from the important to the silly. I might be closer to the Farting Chair end of the scale, but hey, I made the list. Fast forward to 10:25 to skip all that nonsense about 14 year old kids changing the world by detecting earthquakes.
I've launched The Magic Clock (http://www.themagicclock.com) to show the build log for my Harry Potter clock. I built the site in Google Sites because it could be one of those sites that gets a lot of clicks for a short time and I'd rather not hammer my own server.