I bought a back quiver a while back off the big auction site. I wanted something to just bang around the back yard with and the price was right. It works well enough, but I could definately see how it could be improved upon. Anyway, it appears to be made from "plastic canvas" (search any of the big craft/fabric stores) covered in fleece with a pvc end cap (also covered in fleece). The "plastic canvas" can be had in all sorts of sizes and shapes, it's cheap, and can be rolled/flexed in anyway you want it. It's basically just a big piece of plastic mesh material, been thinking on a design or two myself using this stuff as a "frame" of sorts. When and if I do, pictures will be posted. You might take a look at it and see what ya think.