My idea is a machine that dispenses marbles. The marble slides down and is distributed outside thanks to a motorized lever. In details, the marbles slide into a place where a rotating lever pulls them outside.This would be a great lego set because it has a lot of functions thanks to power unit. It could be the chance to launch a new product... lego marbles! I built it with lego technic bricks and, of course, with the help of power unit. The basic structure can be customized but in my opinion the most important thing is the idea... Thank you very much!