well, Now we are back to glass. The Hot Head, torch is a Mapp Gas torch. It is Cheap with a Kit coming in at about $150.00 at: Frantz Bead co., www.frantzbead.com, Or for you folks back East Arrow Springs. Gramdpa's Christmas gift, The Phantom Torch came from arrow Springs, Wow! Now we are really are talking Money! Anyway, the Hot head will make marbles, and give you the feel of marble making. . You must buy a Marble mold with the kit. I suggest a grapphite mold, as a Cherry wood mold will do just that! MOLD, unless you tend it every week, and change it's water.. Love, grandma.