Fällkniven DC4 No-Slip Pad
The Fallkniven DC4 is one of the more popular pocket-sized knife sharpeners, particulary among bushcrafters, due in no small part to patronage by Ray Mears.
The technique that Ray Mears uses to keep his stone from moving around is to create a frame by hammering 4 small nails around the stone into a log. This works, but, over on the Equipped to Survive Forums, I picked up a better idea: simply cut up a bit of non-stick rubber padding.
This padding is sold in rolls and meant to be placed between carpets and hard-wood floors to prevent the carpet from moving around. The stuff that I use is actually meant to line shelves and drawers. The only different between it and the carpet padding is that the shelf and drawer stuff has smaller squares and a tighter mesh.
I find the padding to be much more convenient that the nails. It’s easier to deploy – you don’t have to take the (albeit small amount) of time to hammer in and then remove the nails; the pad works just as well on a rock as it does on a log; and the pad does not get in the way when sharpening, as the nails will sometime do.
For storage and transportation, I simply wrap the pad around the DC4’s sheath and secure it with a rubber band.
I still carry the small nails in the bottom of the sheath just in case, but I think the pad is a better way to go.