I'm guessing Round 3 is a round about sisterhood? Do you have a theme for your party or something that you are all wearing that is similar? Start there and try to incorporate your video into what you are already doing for the round.
Here's are the last 2 sisterhood videos from my chapter,( it doesn't have a "theme" - the theme is "sisterhood") even though I'm an alum and don't know these girls, I still love their videos and it makes me miss being an active
www.youtube.com/watch?v=7wTYYLgOOF8
http://www.youtube.com/watch?v=V__VbOZAiUY