R.
Choo Choo Bob's! Sounds like it might be perfect for your situation. If you're not familiar, Choo Choo Bob's is a train store located near the corner of Marshall Ave. and Cleveland in St. Paul. They have a party room for birthdays - I think up to 8 kids, not sure for about $120. (again, don't quote me). There are 8 train tables set up in the back of the store by the party room for kids to play with. It's a great deal and something different - you'd also be supporting local business. Google their website for more info. Good luck!