Holiday Shadow Mobiles

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.