If you're looking to show off with a dash of real romance, how better than with Final Fantasy X's tragically romantic lead pair, Summoner Yuna and her guardian Tidus?
While Tidus might be bit of a blonde and a bonehead to boot, there's nothing he won't do to make sure that Yuna achieves everything that she's determined to. That forced laughter on the way to the Mi'hen Highroad will ring in your ears forever with cringe and second-hand embarrassment, but you have to admit that the scene above was positively beautiful and the stuff of daydreams.
A little dated, these costumes might be a little more difficult to find on short notice, so you may have to resort to needle and thread if you really want to do these lovebirds justice!
(image source: DeviantArt)