All you need are mason jars or cheap glass vessels, white gauze and googly eyes (available at the craft store). Start at the botton of the glass, and adhere the gauze with double-sided tape or a dot of hot glue. Then wrap the gauze around the glass, with just enough overlap to cover the glass beneath. When you get to the top, adhere the end of the gauze with another dot of glue or tape. Then stick a set of googly eyes to the front.
Add a candle and they give you a spooky glow! (I recommend a battery-operated light for safety.
Check out my blog, Hi Sugarplum!, for more pics and project ideas!