M.M.
Hi! We did the inflatable parties too - this year it seems that the thing to do is a bowling party. My 6 yr old son was to 3 different ones this year, and that what he is having at Orland Bowl.
Just a suggestion! Hope this helps! Also the park district rents out the tinley fitness center pool and party room and racquetball court for a really reasonable rate - I think $150 or so for residents - you just get the food. They provide lifeguards!
Good luck!!
M. M