The "Grand Marshal's Aegis" is basically as old as World of Warcraft is, and it's one of the most recognisable and cool-looking items. And its perfect replica, built by puzzlehead84, looks even better.
Picture: Miyari on Wowhead
There's a gallery below. Check out puzzlehead's album for more and for construction pics.
He missed a few tally marks though (which, as legend says, shows how many times the Alliance won a Battleground, ever), but other than that, it's an amazing replica.
Puzzlehead also built a real version of the ridiculous-looking Gnomish Mailbox that can be found in Gnomish areas and hubs. But seeing it next to normal mailboxes is much funnier.