I recently bought an Opinel No. 6 to replace my missing No. 8. (Of course, my missing 8 will now turn up to taunt me.) After holding it for a while and making a few test cuts, I sanded off the factory coating and reshaped the fishtail butt end a bit. I tried staining the wood with tea but that was too light in color. Next I stuck the blade into a potato for patina and safety and held the handle over a lit candle to darken. I lightly sanded the handle and back into the flame. This worked very well, after several charring / sanding cycles the original beech wood looked more like walnut. The handle was lightly oiled with BLO several times and ended up looking pretty good. The blade was darkened with a cold bluing solution. I know the 8s and 10s are more popular but I really like this little #6!