hmm... with scavenge you can get rusty quiver with 15 or 16 old arrow... if you buy quiver at AH, how many arrows are in it? 1188 or 16? what about buying from bazar...
In whichever city is first in conquest, you will find a Mithra with the travelling circus/minstrels/whatever. This group can be found in Southern San d'Oria across from the Auction House, Windurst Woods near the fountain, or Port Bastok near the Gustaberg gate, depending on which city is first in conquest. The Mithra in question is sitting off to the side instead of actually performing with the group.
You will need 1 carnation for EACH stack of 99 arrows. Carnations can be purchased at the flower shop in Upper Jeuno for around 60 gil a piece, or purchased from Auction House under Materials >> Alchemy. She will only quiver full stacks of 99 arrows.
Simply trade the arrows and the carnations to the mithra at the same time, and she will give you the quivers in return.
You can trade several stacks of arrows and several carnations to her at once so you don't have to do a separate trade for every single quiver. For example, the most slots you can trade to someone at once is 8, so you can trade 7 stacks of Silver Arrows, and 7 carnations (all in one stack) to receive 7 quivers all at once.
Quivers can be stacked, with up to 12 quivers in one stack. This means that you can carry a total of 1188 (12 x 99) arrows in a single inventory slot.
You can not equip a quiver in the ammo slot. Simply "use" a quiver, and it will be broken back down in to the 99 arrows that make up the quiver, which can then be equipped in the ammo slot.
You need 12 sets of a certain type of arrow for instance 12 stacks of silver arrows + 1 Carnation and the Mithra will make you a quiver. Look in Region Info to see which country is in first , that is where you will find her.
you have to see first wich of the citys is Nr1... then u go to that city and find those dudes that plays the intruments and throws knifes and sing... in one of those tents there is a mithra, forgot her name, she wants flowers in exchange for making the arrows into quivers... check it out ;)