Themed outfit ideas please!!!

My friend and I have been going out just the 2 of us, and each time we choose a different theme. We dress accordingly. It's been such a blast. So far we've done: -90's Moms -Hollywood Glam -60s Mod

I'm trying to think up other styles we could use that would be fun to recreate. Anyone have any ideas we could run with??? Thank you in advance!