I've been trying to get a mog set together and have figured out everything I need--except the boots. NOTHING matches since the ONE item Blizzard made is no longer available in game.

If you are a Leatherworker on Moon Guard, please send me mail or something if you can make the Boots of Living Scale. I can get you the mats, I just need the person to craft them!

The pattern comes from Ulduar according to WoWhead but is also able to drop from a lot of other instance bosses and caches of loot.