Some people may say this isn't exactly an invention, but I'm sure cat lovers worldwide would love it if someone created a cat breed that stays small and kittenlike forever. Through the years, miniature dog breeds have flourished; why is it that there are no miniature cat breeds? I can think of a dozen dog breeds that retain their puppylike appearance, yet the typical housecat is doomed to going from adorable, petite furball to big, fat furball within a year or two!