This company sells props for "Haunted Attractions" which could presumably also be used to create horrorshow ambience in your own home. Add some BDSM gear and you've got yourself a party. Shown here: Exorcist Bed & Levitator Option:
"Our Exorcist Bed thrashes on a solid steel 360-degree simulator chassis. Your Actors can ride it or you may choose to add the Levitator option which safely and comfortably floats an Actor to a height of 5' 0" up and down over the bed as it thrashes around. Unit includes solid steel chassis & bed frame, walnut stained four poster bed, pneumatic package, SFX01 computer controller, footpad. Levitator option includes padded steel cradle, pneumatic package & grip switch."
Link, Discuss (via Bruce Sterling's "Viridian" e-newsletter)
