My aunt is throwing my bridal shower. Yesterday my aunt, mom and I were shopping and decided to try on big, "royal" hats. We were having a great time and my aunt came up with an idea. She is having my shower at a tea room and she thought it would be fun if everyone wore hats at the shower. My mom and I both love the idea and think our family and friends will have a good time with it. We're wondering, how does my aunt word the invitations to let people know they are welcome to wear hats? Thanks!