Finnegan and the food bowls

My puppy is crazy. It seems like his favourite toys are his and Poppy's stainless steal food bowls. He absolutely loves them. He carries them around, bats them like a soccer ball, puts them in his bed, and looses them outside. He's also learned how to put Poppy's bowl inside his bowl (Poppy's is smaller) and pick them both up. Have you ever heard of a dog that does such a thing?!