Yes
He told me they "generally" charge $5 per square foot (sounds like this is flexible), and that they try to squeeze as many stickers as then can in a given area to maximize the savings for you. Also, they have a $20 minimum purchase. This means that the smallest order will be like a 4 square foot sticker sheet, and then just calculate how many 12" or 18" stickers you can fit on that and you'll get the price per sticker.
You could make one 48" sticker for $20 lol Enough to wrap you up and go to sleep in
Mike