Sticker Switcher

One who switches the sticker on a product to deceive the seller in an effort to get the item at a lower price.

When someone covers up your bumper sticker and puts another over the old.

The kid at the record store today was a sticker switcher; I can't believe he got that original press for 99 cents.

I almost caught the sticker switcher who covered up the Ron Paul bumper sticker on my car with an Obama bumper sticker.