My class and I just finished up a mailbox made out of the tailfin from a 1959 Cadillac. The kids worked real hard on it, and did all the fabrication and body work themselves. I think it's a great job for a bunch of high school kids! This mailbox is going to the Frontier Auto Museum in Gillette, Wyoming. I would highly recommend that if you have the chance to visit the museum, do so -- it is an incredible place! Enjoy!