Cleaning Snowshoe Hare's Foot

I've got a number of hare's feet and the bottom of each one is discolored. I need one that is white like the top of the foot and I'm trying to figure out the best way of cleaning it without messing up to flotation quality that this material provides. Does anyone have a recommendation on the best way to go about doing this?
Thanks...

I've never heard of anyone being able to do it. A few years ago a friend of mine tried bleaching it but it didn't do much good, helped a little.

You can wash it with Woolite.