Well let's go straight to it:
I'm asking everyone to post their best contraption here, not for a competition, but just to share idea's.
Just post your best contraption here.
1 contraption per user.
No battle/contest contraprions.
Post a link of the contraption of other users, which you think of, is best.
Here is mine: http://FantasticContraption.com/?designId=4396826