Since it seems I'm out voted on his call name which I finally decided I want to be Magic and Hubby and Daughter are calling him mischief. I am taking over on the registered name. So unless it's been done too many times I am thinking "Klassic Magical Mystical Tri"
I think it varies with breeders. Some breeders name the pups on their registration, some let the new owner do it, some want the kennel name as part of the registered name but leave parts up to the new owner. Often the registered name is unrelated to the 'call name', which is what the dog answers (hahaha) to.