floranora - I disagree. Most adults have more manners than to harp on to people about their name. I have a Felix and Felix the Cat has been mentioned perhaps twice in his eight years.
I know an Uma who very much owns her name - I do not give Uma Thurman a second thought when I'm around her.
People end up owning the names they are given. The seawitch, from some irrelevant, vapid movie from 25 years ago is not a reason not to choose a name we love. It has an elegant history that goes back centuries. People are pretty silly if they can't get their noses past popular culture from the 80s.