With those blow up jumpers, people usually watch their kids, leave it up to them to determine if little Sally can go in there. You are just responsible for providing a fun time. Little people also love bubble machines, wading pools filled with rubber ducks, obstacle courses, a bike safety course, tug of wars, 3 legged races, gunny sack races, water fights (perhaps with the fire dept?) Our fire department here had their hose spray straight up into the air making a large shower for kids of all ages to walk through. My son thought that was just great. Also look at local businesses to see what they have to offer, or ask them directly. They may come up with things you never thought of before, and then they will have a reason to come. ;D