Barbie Prom Dress Design. The amazing Barbie is going to prom and she needs a custom made dress for this great event. She has decided to go to a great fashion studio for her dress and you can help her. Start the great game called Barbie Prom Dress Design and pick one of the two dress shapes: a mermaid or a shirt ruffles dress. For each dress there are three fabric patterns, such as simple pink, purple with gold strips or animal print.