Cut out your fur according to the changes to you made to the plain fabric base. Use the fabric as the pattern.

For doing more than one kind of fur, once you have the pattern you want traced on the fabric pattern, use it as a cutting guide. You can even cut the fabric to the pieces you need. Make sure to leave a 1 inch seam allowance for the edge where you join the pieces to make a full pattern piece...but if you forget to you can just join the pieces with a hand stitch like I had to...

If you do the seam allowance, trim along the inch wide allowance and make notches so you can make the pieces fit (if I had done this I'd be able to show...but I can get some pics of Starlight's stitching to show it off) together smoothly, then stitch together either by machine or by hand.

Regardless of how you do it, make sure if you're using more than one kind of fur that it ultimately ends up being the shape of the full pattern piece when you're done.