I'd like to see recipes for alchemists to make unique noggenfogger elixirs, maybe from getting gadgetzan rep or something, which can be sold on AH.
ie:
-Noggenfogger: Ghoul
-Noggenfogger: Ogre
-Noggenfogger: Worgen
-Noggenfogger: Forest Troll
etc.
The ghould one would be handy for death knights to confuse people when they pop raise dead or army of the dead :P