TRAIN MOTIF POST BOX

I'll start my enquiry here, but judging from the dates of the postings I may be searching in the dark. I'm looking to replace my post box that "once" had a train smoke stack on the top and a cow catcher on the door along with wheels along the sides.
I've searched the "net" but con't seem to find a thread to start a search. Appreciate any information you may be able to provide.

Doesn't need to an engine, could be a caboose, or other rail related design.

Thanks,
Best regards,
Rodger

Rodger,
Check out a site called www.Mailboxesandstuff.com; they offer steam locomotive mailboxes that fit your description, but they're a bit pricey.