My kids can use it to fill AND TIE their own water balloons. I'm sure my parents wish we'd had something like this when I was a kid. Tying a thousand balloons by hand is hard on the fingers!
Here are videos of the kids demonstrating.
Now, occasionally it slips off and sprays water everywhere...but the entire point of water balloons is to get wet, right?
I'm not being sponsored to promote this or anything...I just think it's the coolest thing I've seen. There are also refill packs with all sorts of colors!
Go to Amazon and check it out by clicking here!