For those of you who have godparents, and are close to them: how do you address them? As "Godfather"? Do you have another role-specific form of address? Or do you just go with "Uncle Bob"?
For those of you who have two fathers or two mothers (a same-sex couple, or a stepparent that you're close to, or anyone else that you consider to fill that kind of role), how do you differentiate between them?
I'm trying to get a wide variety of examples to choose from, so anything you've got that seems vaguely like what I've described, please don't hesitate to throw it in.