For any lady in need of new unmentionables, I have to recommend paying a visit to your local Victoria's Secret. I know the store is named after Queen Victoria but this season seems to be all about Marie and Georgie! I saw so many pairs of undies there that they would approve of.
If you are of the Antoinette persuasion pick up some cotton panties in the polka dots and fleur de lis pattern (celadon crest). If Georgiana is more your style she would be all over the lace-waist thongs in the ostrich feather and bow pattern, complete with spangles on the lace (I'm so sad there's no picture of these on the site yet! Check your local store, they're adorable). If neither of those are your style and you just need something that's invisible on a night out there's some pretty brocade pattern pants. If you take a peek on the site you will see more and more 18th century patterns in the different styles. And ladies, don't forget to supply your home phone number when you check out, I get a coupon for a free pair of panties every month or so!