So for the "dependents" in my family, I have certain ways that I say their names. We've got "baby, baby" and "kobe-dog" and "katie-girl." It's not just the name, but the intonation that makes the difference. Of course, this being a written medium, I can't exactly provide to you and/or describe exactly how it is I say their names. But it is distinctive.
In terms of the words themselves, any other variations don't work! It's not baby boy or Mark baby, and it's definitely not kobe-boy or katie-dog!
Random thought. And short and sweet. I forgot to post yesterday!
Today: I am thankful for nicknames!