Actually, quite a few of my dogs came with names, such as Maggie, Pepsi, and Misty. (And, other types of animals, such as Critter the parrot.) It's less usual to end up with puppies with names than adult dogs, which is why you come across it more than most people, I imagine.
I always liked Chicory's name/how it was gotten.
I've done the same when it comes to T.V. shows that I'm watching when the animal comes in, or maybe from a book I'm reading. For example, a parrot that I named Professor from a book, or Ananda the cat.
Technically, in the book that I was reading, Ananda was a dog, but she had my Ananda's personality, and coloring, so...!
You're great at naming!
Love All Life, Thank You For Posting! :)