Took it from school, how else would i get one. Didnt want to risk shattering it, so we just cut down a skinny tree and made a small plug, like a cork. Then drilled a hole for the bowl, and four smaller holes for the hoses, 2 long 2 short. Put a slider stem with a rigged pen extension onto the bottom of the tree, good old slider carb. The wood dried up and shrank the next day so i had to use the classic playdoh clog trick to hold it in place and keep it airtight. Works like a champ, super easy, and no money spent.