This is what I was making with the Tunisian joining method. I have a four door unit and I only had 3 stockings, so of course I had to even it up. It's just 3 rounds of 24 granny squares joined together. I ran out of xmas green yarn, and that is why it is just red and white.
But I do believe the colour difference makes them all unique, I did not make the one with the puppy on it, it was just too cute not to use.