is it male or female?
twiggy is a model so how about going along those lines and having another models name?
or bambi is a film so how about, oh whats the rabbit called?...... thumper? ok may be not but try and think of another cartoon animal?
all my dogs names run along similar lines like alcoholic beverages........ soda is nice name and so is fizz!?
good luck,you might find the breeder will have an idea and something will come to you when you see it for the first time!