There's a pair of identical twins in another family I'm close to. Their names are Christina and Constantina. Their parents didn't think they'd survive because both twins have Turner syndrome, and so whether you'd call it superstition or fear of attachment, the parents were more open to names. They were eventually named Christina and Constantina (with each's first name being the other's middle name), which I felt almost destined them to me because I come from a long line of Tinas. I wouldn't have named them anything else (albeit using up what names I would name anyone). These days, I'm like their second mom.