Next year I plan on buying some 3 axis skulls for an animated show. At certain times, I would like each of the skulls to pop up behind a tombstone and begin talking. When they are finished, I'd like the skulls to retract.
I know that the grave popper could be easily done with a wiper motor. However, I don't think a wiper motor would work here because it would be difficult to synchronize. Instead, I'm guessing I'd have to go with some type of pneumatic control. Does anyone have any suggestions?
Thanks ahead of time. And yes, I know its ridiculous to already be thinking about 2012 but I have a Halloween "problem."