Ironwood Maul

Ironwood Maul is an uncommon two-handed mace weapon slot item.

Source
This item can be purchased in limited supply for from the following vendors:
 * in Elwynn Forest, Westfall, Redridge Mountains, and/or Duskwood
 * in Loch Modan
 * in Ratchet, The Barrens
 * in Booty Bay, Stranglethorn Vale
 * in Silverpine Forest
 * in The Barrens
 * in Zoram'gar Outpost, Ashenvale