Grizz;
I source my wine bottle foil from the local LCBO (Liqour Store) by placing a small flyer asking for buyers to save the foil from the bottle and drop it off to a friend at the store.
If you can not do this. Check your local Yellow Pages for "Brew/Bottle it yourself" locations. You may be able to by sheets of foil without having to consume the contents.
I hope this helps save some money for you.
Cheers;
Gregory