101 Dalmatians. ...when you said black and white you were talking about spots, right? That is in horrible taste. But gave me a good laugh.
I totally laughed. Totally inappropriate though too. I couldn't help but think of a sketch that appeared on Australian TV a couple of years back. Anyway, my idea is Greyscale
What about "sunshine" or "rainbow" or "blacky". Only those doubting their manlyness are afraid to use nice names.