When I have time, I like to go to the main counter of the downtown post office to get stamps rather then using a machine. I like picking out something special. Otherwise you have to take the more plain ones that are the default from the vending machine. I know a couple of the post office counter guys anyway, and we have a fun moment or two.
I asked the guy if there were any movie star stamps. He said that all he had at the moment were sheets of Ronald Reagan. I said, "yuck", he said, "I know that's right!" Then he whipped these out. Nice!
Carmen Miranda is my fave.