A lot of people like those stick on maps that you attach to the side of your RV and then put the sticker of every state that you visit onto the map.
But the company that makes them stopped producing them about two years ago. Another company took over, and changed the design. But nobody likes the new design.
I still have one of the old design, brand new in the bag. If anybody wants it, it will probably cost you a bunch of money... but at least you know where you can get one!