Hen night themes?

I think genies are cool but Alice in Wonderland is kinda juvenile. If you got genie costumes you can always alter the mid section. I went to a toga party once and everyone was dressed in potato sacks cuz it's a "Roman" theme but I didn't know that so I went to a costume store and I ended up the prettiest dressed there. I went in a sleeveless long white dress with gold braids crossing the . Maybe you can all go in the white dress type. Also go on google & type in costumes to get ideas.........Have fun!