Hi, looking for inspiration! Hosting a party for my son who will be turning 4. It’s in a big hall, I’ve got a bouncy castle and a cake, but I’ve put the party duration as 3h (in the pm) and now wondering how to keep the kids entertained for that length of time?? Hoping we’ll get about 12-15 attendees (have invited 20). What great kids’ parties have you been to?