First from the show itself, Jesse realizes just what kind of emergency burner phone he's been given. Poor Jesse. Hasn't he suffered enough already?
Then some creative fan came up with Heisenberg Kitty who's a dead ringer for Walt's alter ego. The little bow on the now-iconic porkpie hat is a great touch:
Another fan came up with this image of Hello Kitty in a hazmat suit, and it is just WRONG yet uproariously funny. I am seriously tempted to buy the shirt.