Aged Horn

Source
This item drops from the following beasts:
 * Clefthoof Bull in Nagrand
 * Elekk Demolisher in Shadowmoon Valley
 * Banthar in Nagrand
 * Wild Elekk in Nagrand
 * Aged Clefthoof in Nagrand
 * Bull Elekk in Nagrand
 * Tusker in Nagrand