Do they ever utter the words "I'm bored"?
Well, here's an idea to get them NOT bored!! Big Daddy has named this the Redneck Hot Tub, but you can call it whatever you want.
Its cheap and easy. All you need is a large, empty (and preferably clean) trash can and a hose!! (Just don't worry about the water bill until it comes in the mail)
Happy Summer, my friends!!