"SOE Live 2014 will be held in Las Vegas from August 14-17, 2014 at the Planet Hollywood. All EverQuest players that purchase a ticket for this event will receive Guise of the Ancient Gods, an illusion item that gives players the appearance of the Ancient version of the original EverQuest gods."
https://www.everquest.com/news/soe-live-2014-everquest-item-reward
It's been a while, but from what I remember they emailed you a claim code that you redeem through the game, resulting in this item in your /claim window. Many people went to the convention and bought an extra ticket at the door, resulting in a second claim code for this item, which they then sold on Ebay for much more than the price of the ticket itself.