Axe of Durotan

In the cancelled Warcraft Adventures the Axe of Durotan was a weapon that Drek'thar tasked the young Thrall to retrieve. Unless he could return with the axe of his father, retrieving it from a sealed cave in the Alterac Mountains, he would be forced to leave Frostwolf Village forever. Thrall tricked a 'snow beast' into breaking down the cave door, and found the large axe suspended in a block of solid ice upon a pedestal. Melting the ice in a hotspring, Thrall claimed his fathers' axe. Appearing on the pedestal were two hand-prints - Thrall found that his hands fitted perfectly, and the oddly-familiar face of Durotan appeared in the stone.

Speculation
Like the armour and hammer of Orgrim Doomhammer, the Axe of Durotan may still be carried by his son Thrall.