Polymnis is gorgeous. Definitely an underdog of a name. The only annoying part is I always want to say it as
Polyhymnia, five syllables instead of four. But it's worth the effort,
Polymnia is.
So many terrific combos. My favorites would be:
Polymnia Dorothy,
Polymnia Hazel,
Polymnia Lucy,
Polymnia Sophie and
Polymnia Victoire.