Here is the starting chunk of leather. It is a circle of 6.5 inches with 1/2 inch openings for the arrows.
I cut a piece of deer antler (from a past hunting trip) and used a metal file to notch a groove in the end. I also rounded out the end slightly. I then used this antler as a smoother to press the raw edges of the leather into a nice smooth, pretty edge.
I hate to say it, but I used a commercial overstitch wheel to mark the stitching holes. I was thinking about making my own, but heck I already owned one and the kids were already in bed. To late for me to start banging and cutting metal in the garage.
I took a damp sponge and wet the entire surface and then used the smoothing tool I made to round out all the arrow holes neatly. The finishing touch was my EG3D stamp on the top. Hard to accidently pick up my bag quiver with my makers mark right on the top.
This tool was a project I did a few years ago.