12. Cardboard Monster House Window Silhouettes
Turn your home into a living, breathing monster by placing giant, glowing cardboard silhouettes in your front windows. Measure your window panes and cut large sheets of black cardboard to fit perfectly inside the frames. Draw and cut out terrifying shapes, such as giant monster eyes, jagged rows of sharp teeth, grasping zombie hands, or a witch stirring her cauldron. Secure the silhouettes directly against the window glass, and leave your indoor lights on at night or place colored LED spotlights behind them to project giant, spooky, glowing scenes to the entire neighborhood.