2007 we did a single room. What was an unused small office ( 12'x12' ) we turned into a Mad Doctors office. Complete with Mad Doctor that "chopped off" an arm as the TOT's entered the room. The actor on the table (me) would sit up screaming holding a half arm. As the TOT's would walk past the table to get their treats ( back of room under black light ) under the table another actor would either grab their ankle or use blast of air to startle them. This year we found Toilet Paper is great cheap prop that lights up great under black light!!!