Check out this awesome feat of pointless engineering, the six-headed great ball machine. For the uninitiated GBC is a collaborative event at a great many LEGO conventions and exhibits. The idea is to build a machine that accepts LEGO balls (Zamos Spheres, basketballs, etc) on one side and cleverly convey them to the opposite side to deliver to the next module. Why? Because balls, that why!
Thanks to Brandon for the head's up