J.L.
My friend just had one for her son, at the Natatorium. She got a bunch of those long pool noodle things, cut them in half, and then added duct tape and some black marker and made a bunch of colorful, cool lightsabers. The kids (and parents) loved them! (and they could take them into the pool with them). I think it's a great, affordable idea (she found the idea online) if you've got alot of space for the kids to wave those things around.