Sometimes you aren't ready to accept a new innovation, it's just too much too fast. Finding this on amazon made me rethink hundreds of hours of my childhood: https://www.amazon.com/Bunch-Balloons-Instant-Water-bunches/dp/B01897IKBQ/ref=sr_1_4?keywords=water+balloons&qid=1552794397&s=gateway&sr=8-4 …
We use these. They work well. (Innovation is never too fast for participants in an arms race, like my kids.)
