just today i was up at my high school when there were no teachers and i accidentally popped the big ball that was given to us in the kit...
you see i was taking it out of the room that we store our parts in and i put a small hole in it... thinking that masking tape might fix the problem i repared the hole. then so that nobody would notice i tried to reinflate the ball and.....
pop
thats when i figured that people would notice
i'll get a pic of the ball (or whats left) up soon...