I hear ya, girls!
I had this very same question....and while the idea of not wearing any is sort of fun and naughty, I was going to need help later in the day from my Mom, Mother-In-Law, and sister while changing into my TTD gown, so I thought better of it!
Anyway, I already posted these in my Planning Thread, but here are the little numbers I found from Victoria's Secret (that said "Bride-to-Be" on the side hip, and even had a little blue bow, for the "something blue":
They were the "Cheeky" style panties, so they weren't thongs, but they were still pretty sexy anyway, and I can even say they were comfortable, too!