The U.S. Post Office allows its customers to mail many things besides the familiar letter. A customer can send plants, insects, some types of live animals and some dead ones, too. A direct marketing research company surreptitiously mailed a football, a claw hammer, and even a water ski, with nothing other than adequate postage and a delivery label attached to it, just to see what happened. All were delivered with some chastisement from the destination postal clerk about the items needing to be properly wrapped. But the strangest thing to be sent through the mail was a bank. And not a child’s piggy bank, but a savings institution.