At a Cemetery in Mexico A guy rigged a remote controlled motorbike with a skeleton driving the bike that has a speaker attached to it. The guy hides across the street from a walled cemetery and when people walk by it at night, the skeleton rides up quietly on his motor bike and scares the bejeebers out of them.  He has the perfect voice for this. The guy across the street is talking thru the speaker while operating the remote control for the bike.  (It has training wheels on it).