Does anyone sell strop materials (linen, felt, etc.) that can be used in strops that come apart so the material can be replaced? The ends of my strop are attached using screws. I'd like to try linen or others to compare with the poly-webbing that's on the strop now. What I have now (leather/poly-webbing) seems to be good except for personal preference. I would like to see what I like best and save some money by not buying complete strops.