yo. find a metal tube that isn't too wide. It mu7st be smll enough to fit in the shole. Then u put another non burnable metal as the bowl. Now put some metal wire to prevent marijuana from falling through the bowl into the water. Next glue something that will allow the metal tube to go into the water but so u don't have to holld it in place. U could wrap tape around it a lot. Then hit it biotch! have fun and be creative.