1) Make sure you have 2 "Kelbi Horns" in your item pouch. 2) Talk to the "Guild Sweetheart" at Moga Village. 3) Select Low Lv one star "Prescription Pick-up" gathering quest. 4) Deliver the 2 "Kelbi Horns" right away. 5) Quest complete. Take the 2 "Kelbi Horns" from the reward box and sell/collect the rest of the items. 6) You'll received 800z for completing this quest. 7) Repeat this method to obtain easy Zenny.