A Rubber Band?!?! OK...i need your help people... i have to construct a vehical that can transport a 1 Kg weight over 10 meters using any materials i please...here's the catch: Its only source of power can be a size-10 rubber band!! It can have no other source of power and it cannot be launched, and all pieces have to move with the vehical. One more thing: the weight cannot move. Please, anyone...HELP ME!!!!! ANY IDEAS?!?