Halloween costume. Ideas for wearing a sexy shirt with ears or something?

I’m just going to wear a sexy lowcut shirt. (Black with deep vneck cut down to my tummy with a sparkly ring at the bottom).
I want to wear devil horns, cat ears, or something like that. Not really a costume but still fun for going around to bars for Halloween.

What could I do to look cute? Please give me headware, face painting, and accessory ideas. Sexy stuff, not scary or gory. Thank you!