I like the idea of being able to write Cupid and how he is able to affect people so easily. I'm not one for cheesy stories, but I think it would be funny if Cupid happened to shoot the wrong person and has to watch in worry about what would happen to them.
Dis and Proserpine
I love the story of Proserpine (though I've never seen the characters referred to by these names). I could either write from the perspective of Proserpine or Cyane-- or I can do both. If anything, I could write a happy ending for Proserpine-- one where she manages to be with her mother forever and escapes from Dis.
Arachne rejects Minerva
I was surprised at Minerva; this was a side I hadn't expected of her. There could be a story about what happens when she is pushed to a certain point and when she is disrespected as a goddess. Rather than always seeing her as patient, I'd like to branch out and see what happens when she snaps.
Minerva. Source.
Bibliography. Ovid's Metamorphoses by Tony Kline.