Dropping extra cloth with or without Tailoring.
NPC ID 46619 Felstone Acolyte
NPC ID 46620 Felstone Brute
NPC ID 46626 Felstone Warlock
NPC ID 46625 Felstone Rogue
NPC ID 46622 Felstone Merchant
NPC ID 46624 Felstone Outrider
NPC ID 46618 Etheldrin (rare)
Possibly every other custom ID in the area, list isn't full since it affects rares too
It might be the same for all custom ID NPCs?
Killed Ravenous Looter (45727) in Tanaris and had 2 separate stacks of mageweave cloth on 1 mob -- a stack of 1 and a stack of 2.
Dropping extra cloth with or without Tailoring. NPC ID 46619 Felstone Acolyte NPC ID 46620 Felstone Brute NPC ID 46626 Felstone Warlock NPC ID 46625 Felstone Rogue NPC ID 46622 Felstone Merchant NPC ID 46624 Felstone Outrider NPC ID 46618 Etheldrin (rare)