Almost used an uninflated 660 as a blindfold this weekend--parent asked for inflated balloon which I immediately nixed. Then another parent found a headband. And before you go weird places--the blindfold was for pinata busting, of course....
Also, use balloons to tie my pumps and scissors to hang down from my fanny pack strap (which carries my biz cards, money, keys, breath mints and other tiny assorted stuff). Tried other things but they kept breaking through my abuse.