Michael Greene, owner and founder of The Vapors Guild, located at 2 Tracey Street in Peabody, concentrates on making a small coil to fit inside a custom made Mechanical Vaporizer. The shop, which opened April 1, 2014, sells beginner vaporizer kits, but will also build and teach people how to build their own vaporizer. DAVID LE/Staff photo. 8/19/14.