Kids will go batty over this creepy upside down mirror walk.
Tape or tack a winding route of crepe paper around the ceiling of your party room.
Find or purchase a mirror about 6 inches in diameter and affix it to a larger piece of cardboard (this will block out some of the floor, allowing kids to concentrate on the upside down route).
To find their way through this bat cave, children must look down at the mirror and follow the route reflected from the ceiling. They will find themselves gingerly stepping around light fixtures, open doors and any creepy decorations you have hung from the rafters.