ipod headphone grilles

Right, im trying to make a homemade pipe out of my metal kazoo, so its pretty much the right shape for a pipe already, but i needed gauss, so i opened up an ipid headphone and got the metal bit out, put it in and checked if it toked. When i lit it up (nothing in it) i still ended up breathing out some pretty nasty smoke . Ive washed the grille and put it in a lighter flame a few times, doesnt seem to smoke anymore, anyone got any better ideas on how i could clean it up? Dont want cancer .

Peace

Hold it with a pair of tweezers and burn all the shit off until it stops smoking.