Just shooting at the hip here: assuming the concept is still in use this time next year, what would you say to a house based on WWE's Firefly Fun House? I'm imagining a house that begins very bright and comfy, but quickly descends into creepy/off-putting, and by the end, Bray Wyatt, the charming kids' show host, has turned into The Fiend, his demonic alter-ego, and we just have a bunch of scenes of him laying into other, real-world wrestlers left and right. Maybe find a way to incorporate "Woken" Matt Hardy and co.?
...can't be any worse than Hollywood's Undertaker house.