If you are logged in to mmorpg.com, you can go here to get either an in game item from the Tribal Crew Pack or a Tribal Crew Pack to open. It seems this works similarly to how the gold giveaways vary between 1,000 and 5,000g: you could get a single pack item (a various worth) or a pack itself.
When you get to the site and have logged in, there's a button near the bottom that will generate your code.
Here are the items possible from the code:
Good luck to all!