Hey, now that is a good tip, dollar-store, be warned, i'm heading for you tomorrow thx for that one godkasYeah thats waterproof wrapping paper (mylar) you can pick it up at your local dollar store. The silver shiney side is the back so you cant see it in the store. You should open the top of the roll and look under a corner before you buy. (30ft cost me 2 bucks)