there's the Griffon Bruxellois, it's a breed of toy dog. There are two varieties of the Griffon Bruxellois, the rough and wavy haired and the smooth and shiny haired, the Cavalier King Charles Spaniel, is a toy dog, fitted with a moderately long coat, long loose ears and a well feathered tail originally crossed King Charles Spaniels with Pugs and the Chihuahua. It is the smallest dog breed and is named after its place of origin in Chihuahua, Mexico.