Monster Mud Reaper: "A little while after I built this I wanted to add something different. Most people had seen the props for a couple years and new it was static so I decided to add a spitter mechanism to the inside to really catch people off guard. You should have seen the people jumping on Halloween" Great tutorial.
These are the best DIY ghosts I've ever seen. They begin "life" as styrofoam mannequin heads like the kind sold at wig salons. Four layers of cheesecloth glued to the heads but left loose and flowing below the chins completes the ghostly effect. They can stand on their necks, but they're even ghostlier when suspended.