LEGO has to be one of the more impressive and geeky building systems ever dreamed up. The people that invented the little bricks should win a Nobel Prize for something. It never ceases to impress me that geeks can build some very interesting gear using the little blocks. The last time I talked about a LEGO build was when a geek built himself a Master Chief suit out of the bricks. Now a guy has taken a box full of bricks and made his own musical instrument.