I love these kinds of non-serious posts that let us refect on our wonderful Yorkies, thanks!!!
I am going to skip the obvious cute little face and its components...
I like the roof of Mr. Gastby's mouth (I see it when I brush his teeth).
It is 1/2 reddish (normal) and 1/2 very light pink (almost white), and its divided longitudinally along the length of his snout in a very distinct line. I have never seen anything like it.
I am sure its related to his platinum blond hair, vs my other yorkies that have all had gold hair on their heads.