Bounce into a world of fun and create your own Glow-in-the-Dark Power Balls with the new and improved Made By Me set! First, decide which mold you’d like to use to create your first power ball — round or hexagon? Then, pick from 18 bags of crystals to make your design! Carefully pour the crystals into the funnel at the top of the funnel — don’t fill it all the way up, so your power ball bounces as high as can be! Submerge the mold in warm water, let it sit for ten minutes, then pinch the tabs or gently un-snap the mold, and have a ball! Drop your power ball on a clean, flat surface to see how high it bounces, then create more power balls for bouncing competitions with your friends!