I don't think a chip bag is a good choise. It's slick and probley would have a hard time getting paint and clear to stick to it. Something that I've used in the past is cigarette foil from the inside of a cigerette box. If you look hard enough you can find different colors of foil also. And if you don't smoke you can ask a friend to save their cigarette boxs for you, thats what I did. But, the best foil I've found so for comes from Hobby Lobby. Go back to the paints and stuff for modal cars, and there should be a small pack of stick on foil, I think from Testers. There's only 2 sheets in the package and there about 3"by 10" . They cost a little more but their thin and easy to work with. The lure I posted is cigarette foil with D2T for clear.