I don’t own it yet but saw this and was reminded of the maps I used to see as a kid stuck on the back of camper trailers... a US map with each state colored in that had been visited. It was a real sign of adventure I wished I could be on.
https://globetrotterworks.com/products/us-national-parks-scratchable-map
https://globetrotterworks.com/products/us-national-parks-scratchable-map