When I was a kid I loved playing with Legos and now my son enjoys playing with them as well.  As I type this I remember the smell and the days of fun that I had building with them.  Now this guy has taken it to the next level with creating his own Lego band, using the Bionical Toa Mata figures.   They are playing tiny music instruments driven by Arduino Uno and Clavia Nordbeat, a MIDI sequencer app for iPad.  Pretty cool!