I've been engaged since last July, and still have not tried any wedding dresses on. It's not that I'm not excited over wearing a super pretty dress, it's that I'm nervous as hell about finding one.
I'll explain why, a bit later.
I could always go the route of a skirt, like this white wedding tutu skirt from AllieJDesigns. Made from 400- 500 yards of bridal tulle (depending on the length), you could know what it feels like to be a ballerina for at least one day.