Here is an archery quiver that I constructed. I used cow hide that I picked up cheaply at a craft market. The hide is about 3mm thick and I used a section about 600mm x 400mm, not including the straps. The straps were made from the same hide. All of the fittings (buckles and rivets) came from a local antique/bric-a-brac store and a local saddlery supply shop. In total there is about $35 worth of materials here and it took me 4 - 5 hours. I should note that I am not a leather work expert so if you are then please forgive any mistakes.
There were some limitations to this project such as the fact that I could not machine sew this material and the thought of hand sewing it with thread made me cringe, also I have not skill at leather carving or embossing so it is a bit plain. Cost was also a limiting factor as the whole point of making this quiver was because I had no desire to pay over $100 for a quiver from an archery supplier.
I researched quivers on the internet, at my local archery club (looking at commercially available quivers - mostly side quivers) and by browsing archery supply stores (which are few and far between).
Step 1: Design
The process was started by doing some concept sketches to get an idea of what the quiver would look like before a pattern could be made. As you can see from the picture the original idea was to have the quiver and the straps separate but linked by D-links or buckles. The drawing shows the rough shape and dimensions. The dimensions were attained by laying 6 arrows on a table and measuring the size that they occupied and adding a bit extra and then rounding that number for simplicity.
the drawing on the right is the layout for a pattern and the center line also represents the line where the leather will be folded so that the two outside edges come together.