I met a girl at a wedding recently who wore an up-do that had some funky messiness untop and a couple of random braids which I thought was pretty cool. Based on your skin complexion, I think it would make you look sophisticated and exotic. I think it would look even hotter in dirty blonde.
I'd say get straight pink highlights in curly blond hair. However it's up to you. My advise on the other hand would be to check what the bride's hair is going to be like because you want to look nice but you don't want to steal the show from her.
Shave it all off, you already look like a chipmunk, why not try to set a record and look like a bald chipmunk?