This by far is one of my favorite things to make and play with now. It is so easy and pretty durable for play time with kids. All you need is a big balloon,water beads and a soda bottle. First make the water beads. I filled a bowl with water and let mines sit over night to make sure they are the biggest they can get. Once they are done fill a empty clean soda bottle little over half full with the beads. Next blow up the balloon as big as you want but make sure its not too full or it might pop at the next step. Next place the balloon on the filled soda bottle. I found it easy to have help with this step so the balloon wont deflate, but it is possible to do it alone. Then turn over the bottle and gently pour the water beads into the balloon. Once all the beads are in tie off the balloon and done!
This was such fun. My kids loved rolling it around and trying to bounce it. It has a really neat feeling and can withstand a lot of rough play. We still actually have it and plan on taking it outside to see if it is possible to pop it.
note~ I did not see any but I think a clear balloon would make this even better, then it would be easier to see the colors.