Shards of Ahune

So everyone knows and since no one has mentioned it, if you didn't turn the quest in before leaving the instance you have to queue for it AGAIN and turn in the quest for your tabard from Luma Skymother who will be standing just inside the instance when you enter.
You cannot simply make a trip to The Slave Pens.

Hi Guys - IT IS TOTALLY POSSIBLE TO GET BOTH TABARDS FOR THE FIRE FESTIVAL!

Here's what you do:

Que up for the Frost Lord Ahune quest for the Achievement "Ice the Frost Lord"

Kill the boss using the usual methods, and loot the chest - everyone in the group who has not done the quest will get the quest item: "Shard of Ahune"

BEFORE LEAVING THE GROUP / DUNGEON: Go back and talk to the NPC for this quest and choose one of the tabards - doesn't matter which one - just pick one.

Now, go to Orgrimmar / Stormwind to the etherials' shop, and place the tabard you chose into void storage (the regular fee of 25G will still apply) Once that tabard is in Void Storage, go find the guild master in your city (where you make guilds, create guild crests, and buy tabards) and speak to the tabard vendor.

During the Fire Festival there will be a new option when you right-click on the tabard vendor.

These options are:

Let me browse your wares
"I've lost my Tabard of Summer Skies"
"I've lost my Tabard of Summer Flames"

Click on the OTHER tabard that you didn't choose from turning the quest in, and it will appear in your inventory.

Now, go get your other tabard out of void storage - and Voila! You have both tabards!

Hope this helps all of you completists out there!

Luma Skymother is in Slave Pens right were you summon Ahune, in case you're like me and forget to click the item to start the quest until after you leave the instance.