Fog machines can get pricey...try this one for only five bucks..Just in time for Halloween!!

All you really need is some cooking glycerin, water, a foil baking pan, a soda bottle, and a candle. Mix 1 part glycerin with 3 parts water, then put it in the pan over the candle. Cut off the top of the soda bottle to help concentrate the fog, and you’re all set. Check out the video  for the full instructions.

via Make your own fog machine for $5 - The Red Ferret Journal.