Halloween // Costume ideas for me (16M) and my girlfriend (16F)

Me and my girlfriend are both going to a Halloween party together, and I’ve had a few ideas about costumes. She has long blonde hair, and I have long brown hair, but I’m open to temporary dyes (the spray on kind). The ideas I’ve had so far are as follows. Bucky and Natasha (Marvel), Steve and Natasha (Marvel), Will turner and Elizabeth swan (pirates), the joker and Harley Quinn (Batman) and repunzel and Eugene (tangled). I’d like some more ideas, but nothing that shows off too much skin for either of us as we can both get insecure, not to mention cold. Many thanks for all suggestions!