Actually...
I think that's a really good idea you have there. I hate to potentially hijack a pally thread, but a tradeskilled -aggro consumable may not be completely awful. Call it a smoke bomb, or a concussion grenade (lookin at you pottery), or a MiB flashy thingie...beastlords, mages, and priests everywhere would probably appreciate this. There are a couple -aggro clickies out there in the raid world for classes without an aggro reducing ability/spell (tansa ring i think, and serizus neck?), and there are already tradeskilled items out there to give buffs/abilities to classes without them (rez urns, heal pots, invis/IVU pots, SoW pots, misc buffs).
Monklin deploys a smoke-screen.
(Monklin receives a short duration recourse that reduces her hate on her target by 50 pts/tick over 3 ticks, hope she doesn't get resisted!)
The more I think about it, the more I like it. Good call miff
EDIT: Nwaij just proved I had a good idea...good enough to already be implimented. <3 u germany