Carnival of Death (ideas wanted)

[Ravilah]

Okay, I just wanted to pick some of the overly fecund minds out there in DnD land. I'm about to send a band of rougish PCs into a place called Krederic's Carnival. I need the "funhouse" (or some attraction) to be a death trap. The owner is a retired assassin. The PCs are level 12.
Any ideas how to make this interesting?

R

 

[Nightfall]

Check out SL's stuff from the Carnival of Darkness. IE Dark Jesters, Blood Bayou, stuff like that. But then I'm biased that way.

 

[the Jester]

Listen to some Insane Clown Posse- you'll get lots of ideas.