Here are some spooky little Halloween decorations made from hollowed out eggs and LED candles. These "pumpkin eggs" are easy to make, inexpensive, and unlike carved pumpkins, they won't rot. You can place on your window sill on Halloween night or use it to decorate your desk at the office and impress your co-workers.
These are Halloween versions of a the [[http://www.instructables.com/id/Eggcellent-Night-Light!/] Eggcelent Night Light! and the http://www.instructables.com/id/LED-Ball/
LED Ping Pong Ball.