I almost went to jail cause of those little things.
Long story short..I was Tripping and wanted to see what 500 multicolored bouncy balls would look like in a black light all bouncing at once.

Needless to say the ASU police weren't as amused as me and my cohorts were.
after they ran all our Id's they tool our lights and they made us pick them all up and leave the ASU Campus (under escort) so we went to a big parking garage and let them go from the top and then ran like hell after all the chaos was over..
My god there were colored balls everywhere..BTW 10 floors up is the right height for maximum bounceage for those little suckers..