To get Irmorom's emblem, you need to master the skills of Blacksmithing, Carpentry, Tailoring, Baking, Glassblowing, and Druidry. Baking and Druidry requires possession of all recipes. You don't need to keep the created items in stock.
Oh and turns out I was wrong about Moshran's Emblem, but I guess you found it anyways...
Congratulations on getting this far in the game.
