I have a big piece of 5/6mm vegetable tanned hide thats really too thick for sheaths, I cut a generously sized strop from that and I used a very sharp bench plane to resurface the back side of it, will fit metal loops each end when I get round to it so that I can tension it against a hook in a wall or whatever. At the moment I just pop one end in the vice and load it with Autosol which works well. Wet and dry on a mouse mat for the earlier stages. Couldnt be much simpler or easier.
Jason