Activity for Jackie

I want some ideas on how to ask my bridesmaid if they would be a brides maid. I want a cute inexpensive way. I'm already doing the boxes as their thank you gift on the wedding day.

Since I already live in Florida I was thinking of having my bachelorette party in Miami. The city never sleeps and it's a cheaper alternative. Though, if we go to Miami I want to be fancy and super girly for it since I never get to do that at home....