Hobo nickels are actual U.S. coins (usually Buffalo nickels but sometimes Jefferson ) whose original image has been carved away and replaced with something more whimsical. These folk-art pieces are known as hobo nickels because hobos supposedly started carving them on long train rides during the Depression. In fact, hobo nickels first appeared in 1913, the year the Buffalo nickel was released, and are still carved by artists today. Nickels...