In general, I'm not a big fan of balloons (just ask my kids), but I do dig water balloons, and I especially dig toys that work as-advertised. Zuru's Bunch O Balloons are so simple and easy-to-use, I'll never go back to filling water balloons the old-fashioned way. You simply attach a quick-connect adapter to your garden hose, and then connect it to a pack of balloons.
It's best to do this over something smooth and protective - like a trash can or laundry basket. I made the mistake of filling these right over the sidewalk (didn't think much of it) and a few from the first batch rolled off and popped when they hit the grass.
With standard colors available, or new licensed packs featuring characters such as the Minions from Despicable Me 3, kids will have a blast when they take to the yard for some old-school water fun with a new-school twist.
Learn more at http://www.bunchoballoons.com/