Yes, the negative connotation immediately pops to mind. Other than Greek mythology, the only other time I've seen
Pandora used is the title and main character of a
Louise Brooks silent film. (Very risque' for the time.) Could I interest you in
Persephone? The imagery might not be much better, but it's not as obvious as with
Pandora.
It does have a pretty sound to it. Just for fun, here are my humble attempts at a mn for
Pandora Demars:
Pandora IrisPandora ZoePandora HelenPandora Ione