I ordered a duck stamp (formally known as the Migratory Bird Hunting and Conservation Stamp), at the prompting of Paul Baicich. The smart thing that Paul has done is to locate a supplier for a plastic holder/carrier for the stamp that has a key ring; since the stamp costs $15 and you can’t use it for postage, the least you can do is hang it on your bins or your backpack. I tracked down his supplier information and product number (#92033) through Birdchick. But the gizmo is backordered for the next couple of weeks. The dealer is probably trying to figure out why this particular size of an 89-cent snapshot holder is so hard to keep stocked.