My Royal ended up being called Chucky. After the evil doll from the film Child's Play. My wife took to calling it Chucky because she is terrified of snakes and was caught up in the usual stereotypical misconception that they are evil nasty creatures.
From that perspective Chucky works however, there are a couple of reasons the name does not fit. First of all Chucky (my Royal) is a girl, secondly unless your a mouse, she has got the sweetest disposition and is really friendly and sociable.
I dragged my feet thinking up a name and in the meanwhile she had been called Chucky so many times that it just ended up getting stuck with the name.