PLEASE ANSWER!!! I need a GREAT PRANK!

Question

I want to pull a great prank on my friends at my birthday party. I dont want anyone to get hurt and it has to stay G - PG rated. I will have a spacewalk/moonwalk/http://www.littledebbiesmoonwalk.com/images/moonwalks/moonwalk-superman_lg.jpg (whatever you call it) in my front yard.

Answer 1

It's a moon bounce.

Get a rubber snake or fake poo and have it drop from the ceiling at some point.

Wrap the front door in plastic wrap so the first guy to run for the  bounce gets tangled up.

Have a bouncer at the door.

Stink bomb

Instead of the floor of the bounce, put a pool of pudding.