Much of the time, for face masks, I do not make a paper pattern. I copy my general pattern onto the metal, and then draw, either in or out from it, directly on the copper. I draw with a sharpie, and erase with acetone (acetone being the one chemical that I do keep in the shop- it's just so darned handy). I'll keep reworking it untill I think it's just right, and then I'll cut it out.
