Lol I know a much easier one, empty 2 gallon milk carton with bottom cut off, in a bucket with water, with tin foil laying ontop of the milk carton with holes poked in it. It's easy, and you can throw it away afterwards or dip your head in the nasty warm bong water or try to drown your smoking partner in it :stoned:

However, that looks like a very well homemade Mr. Five0Addict! :thumbsup: