so here we've got a normal albeit used maglite flashlight unscrew this little part and then this one well what do we have in here? what do you think?
Ewwwww... who knows what shit you'll be smoking, either fumes from metal that wasn't designed for heat or the paint and lining.. pretty greasy but do what you want.
Dood i love the idea, if u havent already i would say wire brush the inside and then torch it and then boil it. Then again that might be overkill