The two outer sections of this cell phone pull out and fold in like a tri-fold wallet, making it very compact. When the phone is in its open position a wide screen display and a full QWERTY keyboard are available.
paint sprayer; reverse engineered
A mouse you wear on your finger. Version !.0 has a bluetooth unit, external track pads and a charging port. In version 2.0 everything has been miniaturized and internalized.
The contest was to design the lightest coat hanger possible that could hold a heavy winter coat. I has going to win (14grams) until 2nd place asked, after being weighed, if he could trim some of the excess material off of his model and try again, at which point I lost by .5 grams. Why I didn't trim my model I don't know—I later got it down to 12.5 grams as shown here, and there is clearly room for more weight to be shed.