[RKDinOKC]

I got it!

David Copperfield drops by, puts a black cloth over the lift, waves his hands over it then removes the cloth and the lift has disappeared. Then he lays the cloth over the pit, waves his hands again, removes the cloth and poof, the lift is in the pit.

When I try it with a bed sheet, all that ends up happening is the bed sheet gets dirty.

Seem to know a lot of clowns, but no magicians.