Glowing Ghosts

These apparitions may seem friendly at first, but in the darkness their scary side comes out. To summon a ghost, snap one or two green eight-hour light sticks so they glow, and insert them into a white balloon. Inflate the balloon and tie it closed. Use a black marker to draw a wide-eyed visage. Repeat to make more, then affix ghosts to a wall with transparent tape and lower the lights.

Thanks Martha Stewart!