If you have a good female friend who is going maybe you could go as that Disney characters male counterpart. There is always Prince Philip ("Sleeping Beauty") or Prince Charming ("Cinderella"). They are very fancy and very popular.
thanks for the ideas, but now having talked a bit with my friend, she says i have to go as ariel lolz.
if i go as that, im sure i can manage the shellkini, but how on earth would i get a fish tail kinda thing going on?
lolz, yerp, but now her sister is going as ariel (dam! lol)
but now it turns out one of my male friends is also going, so we mite go as the ugly stepsisters, cos its easy (just wear a dress and heavy makeup lol)