Balia'mah Trophy Skulls
From WoWWiki
Balia'mah Trophy Skulls, located in the Balia'mah Ruins [46, 32], are a pile of skulls the the jungle trolls have collected from their kills. This is one of many piles.
Objective of
Contains [Balia'mah Trophy] for the quest 
[40] Speaking with Nezzliok.
