C.W.
I've done Boomerangs and Plaster Funtime with my kids in the past. Recently though, my 6 year old went to a "basketball party" where they used the gym in the church hall. They brought cupcakes and one table to put presents on, and the kids played basketball and dodge ball the entire time. The kids had a blast and I'm sure the mom didn't spend a lot of money. Just an idea....