Everyone loves a bargain. That is why so many shops have a shelf with bargains filled with discounted priced items for example damaged goods, magazine that have not been returned in time and/or discontinued items. It is a great way of moving such stock. Make a bin, for example, with a sign all items for $5.
Unfortunately, what sometimes happens is that these items as they have the same barcode as the undamaged items in the shop will if read on a scanner come up with the wrong price. What I recommend is that you put a label on these items so when its read by the scanner it will have the correct price. You will also be able to monitor how this bargain bin is going.