How to do a 27 dresses themed sweet sixteen?

I really love this movie and would love to make it into a theme for my sweet sixteen! I also had the idea of starbucks theme, but i wanted to incorporate this 27 dress idea also. I thought about changing it to 16 dresses. need ideas! things to do, eat, and wear. the coffee aspect i thought like coffee themed bingo, give out coffee cups with chocolate dipped spoons and biscottis but what should i add for the 27 dresses theme? Please help