It seems the drop rate for the Tiny Glowing Skull (lore Version) and the non-lore version are swapped. The lore version should be much more rare (per
http://everquest.allakhazam.com/db/quest.html?quest=213) and the none lore version should be the more common drop. I have found 2 non-lore versions (after multiple clearings of the Goblin Fort). I have destroyed over 15 of the Lore versions.
These skulls are for Shaman Skull Quest No. 4.