I start by cutting off one of the wide strips of fur from the middle of the back of the pine squirrel skin. If you look closely at the zonker strip, you will notice that the tips of the hair (guard hairs) are a mottled redish brown, while the under fur is a slate gray color.
If you pinch the fur firmly between your thumb and forefinger, you can pull the fur off the hide getting both the guard hairs and under fur.
Blended together, this makes a beautiful dark gray dubbing with ginger guard hairs mixed in. This blend did not quite look like the small batch of genuine water vole I have for comparison.
Genuine Water Vole (left) and Pine Squirrel Dubbing (right)
To get a little closer to the look of the water vole, I needed to remove the redish tips of the guard hairs. To do this, I decided to bend the zonker strip and then trim off the tips with my scissors.
Bending the zonker strip around a wooden dowel made the guard hairs stand out at an angle, allowing the ends to be easily trimmed off.
When your are done, you will end up with a small pile of the red guard hairs, and a shabby looking gray zonker strip. Save the trimmed guard hairs and set them aside. They will make a nice spiky dubbing which you can use later for something else.
I then use my pinch/pull method to pull all of the remaining fur off the zonker strip. Pulling the fur off seems to work better than trimming it with my scissors. There is less fur wasted, since it pulls of cleanly right down to the hide.
Next step is to blend the fur in a coffee grinder. Use a few short pulses and the fur is nicely blended.
Here is a photo showing you the comparison of the various blends I came up with.
Top Left = Pine Squirrel Under Fur (trimmed to leave just a little of the red tips to lighten up the mix a bit).
Top Right = Natural Water Vole (this is what I was trying to match)
Bottom Left = Blend of all the trimmed guard hairs (the redish tips only)
Bottom Right = Blend of Pine Squirrel Under Fur (all the red tips were trimmed off before blending).
Overall, this looks like a nice substitute for the rare water vole. After going thru this exercise, I would recommend leaving just a little bit of the transition zone when you trim off the tips of the guard hair. It helps lighten the color of the final blend of the squirrel underfur, and gives it a little more "spectrumized" coloration.
Have Fun!
![Wink ;)](./images/smilies/icon_e_wink.gif)
PS - Thanks for the tip, John.