Hello, I think that I have an invention, that seems to be a great idea. I have made a mitten type cover for those tiny little feet. I have made them so they will not come off, by attaching to the harness. This was designed to keep feet warm. We live in a cold climate, yet the critters love to go out and play. I am still trying to improve on the rear mittens, they tend to sag a bit. Mostly if it is wet out side. Back to the scratching thing, they can't dig holes with the front mittens on. This does not seem to bother the carpet sharks. I will post again when I have completed my project. [Posted in FML issue 2951]