Decorating sugar cookies would be super fun. Get together and make the dough and cut the shapes with a pumpkin shaped cookie cutter, then sprinkle with orange and green sprinkles! I used to love bobbing for apples, and sometimes for little kids they'd have a sheet painted like a little ocean theme and they'd cast a "cane fishing pole" with a clothespin over the "Water" and it would tug and come back with a treat bag, LOL! Face painting perhaps? The zoo when I was a kid used to have a giant hay pile and you'd have to hunt for a specific trinket in the big hay pile.