http://www.youtube.com/watch?feature=player_detailpage&v=mQ6WNWOnH14#t=219

I want to make an object

http://www.youtube.com/watch?v=vTMjTreGHc4

interfer in such way that it behaves like a poorly designed gear where rectangles actually push on each other and cause each other to move out of the way.

I was too lazy to draw actual gears.