You can make one at your home easily, granted volcanos are really nice and simplistic and if you shop around you can find one for 550; What you will need. Ceramic heating element(preferably a stick or coil element, but either way it'll hafta be smaller than a baseball... next step find a small stainless steel cylinder square sphere...w/e floats your boat. next drill 2 holes through the bottom, the bigger the container the bigger the 2nd hole; the 1st hole needs to be the size of the heating element. place heating element in 1st hole(1st hole should be in underneath center of container or coming in from side somewhere) seal heating element in there airtight. place a cut to fit coffee filter on either side of a large hole foam also cut to fit, place foam coffe filter into 2nd hole. make or buy to small stainlees steal baskets for herb......you get the point it'll wind up lookin like a volcano but for about 75 bucks not including labor time. i'll post some pics of it if i get time. O also you cant adjust temp on this one.:( in the end i believe vaping is the healthiest way to smoke herbs. but then again Who's worried about Tar from herb when you can just have straight thc and cbds from Oil....haha sorry to hijack thread a bit, take it easy guys......and gals(seamaiden)