Melissa came home with this while I was painting (of course, what else would I be doing?) and asked me if it reminded me of anything.
Of course it does!
Melissa (the fish) and I spent many hours playing with a very similar red sprinkler when we were young. It had the same little spay mechanism, similar to a boat propeller, which sprays the water out in a wide, splashy circle. Melissa and I had hours of fun and made up all kinds of games to play with it.