At the MWKK, Warren and I got to talking about convex edge sharpening techniques. This idea popped into my head and I finally got around to making a prototype. The block is made from 2 pieces of 3/4" LDF glued together. 2 spring paper clips screwed to the ends hold strips of abrasive paper or cloth securely. I used the usual piece of mouse-pad rubber for the surface. Then it occurred to me, why not glue another piece of mouse-pad on the bottom for a non-slip base? Watcha think?