i found these directions in a link from a different post but it looks easy and there are posts by ppl who made one. :

http://www.overgrow.com/edge/showthread/t-196827.html
DontPassOnGrass Reviewed by DontPassOnGrass on . VARORISER...different high? I wanna know if there is any big difference in the high u get by vaporizing compared to some good old smoke? do u get jst as messed up? Are u as relaxed? im posting this bc im thinkin bout puttin some good money into gettin a nice vaporizer :p , but i wanna kno if the high is worth the money as well as not being as smelly :confused: Rating: 5