Automatic Falling Wall Frame by Jolyon Jenkins

Hanging on the wall of the seance room is a frame containing a photo or painting of your choice. When you decide the time is right, when a sign from the spirit world is needed, for example, the frame suddenly falls off the wall. That's it! That's all it does. But if you know how to milk that event for all it is worth then this is for you. The Magi-tronic "stuff" is built right into the frame so all you have to do is hang it on any wall and trigger the radio control when you want it to fall.
You can play this in a number of ways – as evidence that there’s a poltergeist present, as a demonstration of your own mental powers, or just as a spooky effect in the middle of a haunted house presentation.
Reset is instantaneous. There are no threads or other mechanical devices attached to the picture. It’s all done through electronics and internal mechanics. You can adjust the degree to which the frame falls: it can just shift or hang crookedly, it can fall partially - being caught by a snag in the wall or a piece of string, it can drop to the floor but be saved by landing on a cushion of some sort, or it can come right down to the floor with a crash and shatter a glass covering if you wish. You decide; you control.