Leathercrafters, raise a karakul in monster rearing and you can buy these from the green thumb moogle for 4800 each, stop overpaying for people obviously taking advantage of this new supply.
These can be harvested in Bhaflau Thickets in a fairly concise area. They have a poor harvest rate but the other items that can be harvested in this area, such as Eastern Ginger Root, can make HELMing here worth the time. Check FFXIclopedia for the Harvesting Point locations.