Eskhandar's Pelt

Eskhandar's Pelt is an cloak that is no longer obtainable in the game.

Source
Eskhandar's Pelt dropped from Lord Kazzak in the Blasted Lands prior to Patch 2.0.3, and then, during the Dark Portal Opens event, from Highlord Kruul (who had the same loot table). Now, however, it is unobtainable.