I was talking to a friend today who also has one black parent and one white parent. She said that when she was growing up people in her family referred to her as a "zebra." I remember using that one too. Zebra. I still kind of like it because the zebra is equal parts black and white in its stripes--and both the black and white part are visible.
I also like mocha baby, mixed, biracial. I don't like hybrid, oreo, mutt, heinz 57, and truthfully light-skinned-ed --though obviously I am trying to make peace with that word too.