go to any foundery or pipe maker, like griffith pipe, us pipe, both on main st in florence, id stil prefer to get a super strong enzyme and disolve my victim, however if i was to kill myself i would want it fast and fun.. gun, bomb, car, fall, overdose. If your gonna use gas to kill urself use argon, it will do the job fast, 10x heavier then air and will knock u out before u know u cant breath well, and it stays in your lungs so dont plan on coming back.