Here is the finished blanket.  I used blanket stitch with black thread to join the two layers.  I also added a couple of photos with Charlie wallowing on it.

Fall Leaves Blanket

Better yet, just found this one of him checking it out:

Fall Leaves Blanket

I had to bribe him with it to get my laundry out:

Fall Leaves Blanket

And finally blissfully wallowing on it –

Fall Leaves Blanket