Balloon Bonanza-http://mrfamilyman.com/balloon-bonanza-water-balloons-review-and-warning
If you are thinking about buying Balloon Bonanza water balloons for your kids to throw at each other in the backyard, then you might want to think again. These water balloons are hard!
When me and my wife were throwing them at each other, they were very hard to bust, and there was a time when I threw one that hit my son in the head and I immediately felt bad!
He was alright though (So dad got to live another day) but I can tell you the ones that were hitting me and my wife hurt and left red welts on us. I would think twice if you are thinking about buying Balloon Bonanza for small children to play with.