Materials Empty potato chip can Foam rubber (approx. 9”x9”x1” or 9”x18”x1/2”) Condom 1 ¼” O-ring Scissors Marking pens Empty the chips out of the can. You can...
Materials Empty potato chip can Foam rubber (approx. 9”x9”x1” or 9”x18”x1/2”) Condom 1 ¼” O-ring Scissors Marking pens Empty the chips out of the can. You can...