Occupy chidren?

Question

is there anything that i can do to occupy children that are ages 3-12

something like hiring a clown or magician

but completely out of the ordinary

Answer 1

a very big bouncy castle  (maybe even 2) and food and music

Answer 2

a clown is too young for the older ones, how about a bouncy castle or something similar, kisa of all ages love these, adults too