A quiver that doesn't store arrow inside it. What a completely crazy idea. I love it I need to make me one. I wonder if you could glue like 3 or 4 one inch strips of leather together, drill holes in it to fit the shaft diameter cut slits to the hole to create something like the Kwiki quiver. The attach that around the bamboo?
I love the idea of blunts in the tube for those days when no deer are stirring, but the pesky squirrel has hung out all day. Another modification would be a large diameter tube that you could cut in half. Leave the node walls in place for shelves, cove the open side with leather that has access pockets for the storage area created by the node shelving.
Anyhow, as said before, great thinking outside the tube.