As I was doing research on eBay, I came across a very expensive Johnny Was article of clothing. In the description the seller add "The security plastic pin in yellow, red, or blue color will be attached to the item and no return will be accepted if it has been removed."
This is an great idea to be certain you are getting back what you listed and shipped.
Keep in mind not everyone reads the description but you never know when something could get returned. I'm going to research where to get security plastic pins, just in case I find an item that could sell for a lot more.