Well our cat is called Cinderella mainly because she's my daughters and she chose it but she does suit it now, well Cinderella had 4 kittens on Halloween and we've called them Crookshanks, Albus, Severus and Minerva. We always said if she had a Ginger kitten we'd call it Crookshanks after Hermione's cat in Harry Potter and with them being Halloween kittens it made sense to carry on the Harry Potter theme. I think as long as you don't mind being called from the Vets waiting room by the cats name then its fine. Although i did blush the first time the Vet shouted Cinderella