light bulb evaporator: transparent glass light bulb preferibly if its 100 watts now get a knife and cut around the metal socket its very easy to cute through, once u do that break the glass with everything inside and wash everything out + watch out if u leave any glass fragments in their. get a water bottle or soda bottle cap and make a hole in the middle for a straw to go in through it then if u wanna make a shotgun for it right under the straw(make sure the straw is around half way thru the light bulb and not touching the glass.) place some clean bud inside and evaporate away. stedric is right about bulbs having a shitload of chemicals in em thats why its better to use a transparent light bulb and dont use it as a steady smoker.works great