You can find a mailbox in the shape of just about anything you can think of, from farm animals to trains to traditional hand-painted ones that will carry the theme of your yard. If none of the choices in this vast array of decor options appeals to you, you can have a mailbox custom-made to your specifications. Wall-mountable mailboxes are more like mail boxes, and you'll see those above the doorbell or on the porch somewhere.
These are not always as decorative or creative as traditional mailboxes, but you will find some interesting residential mailboxes on the side of some houses. Traditional mailboxes are those that are mounted on posts, either curb-side or in a garden. These mailboxes, you will find, tend to be more imaginative than wall mountable ones, simply because as freestanding structures. Commercial mailboxes exposed to the outdoors, which is most of them, are normally made of powder-coated aluminum, galvanized steel, cast iron, and copper.