The job I work at often has bouts of do-nothing as I wait for help calls, so I've been doodling puppies and try to get the important aspects of each breed.
I'm interested in *happy* puppies, and some breeds (like beagles) don't lend themselves to looking happy. I suspect the retriever could work at a logo (with a little tweeking) and the Corgi or Maltese will end up as someone's icon.... but I don't mind, I'm just doodling.