Moving decorations have become popular at Christmas - usually simple affairs, like deer that turn their heads back and forth using a simple rotary motor. Moving decorations could be designed to be hung in front of existing porch lights and outdoor floodlights such that they cast a moving shadow against a tree or house, or onto the street. Examples might include a cylinder with spiders that seem to race along the street, or a pumpkin with jaws that open and close.-- bungston, Oct 31 2006 Baked. Often unintentionally. I can remember a particular vibrating bat shadow on the back of an old shed that flipped me out.-- daseva, Oct 31 2006 (+)
Pictures [bungston] placing a terrarium on an overhead projector and shining it on the driveway tomorrow night.-- 2 fries shy of a happy meal, Oct 31 2006 random, halfbakery