My father's from South Dakota and loves the place. So when I happened to be at an event this weekend, and someone happened to be selling beautiful geocoins with Mt. Rushmore embossed on the back, I bought one for him.
Gave it to him during dinner at a nice German restaurant (his choice). I'm afraid I've hopelessly corrupted the man, he said right off, "Oh, my own geocoin!" He loved it, too!