Since I was asked...
We really did do a Marie Antoinette costume 2 years ago.
I was very proud of the wigs in 2005. I made Chase's out of black felt that I attached to the bandanna. Marina's was stiff felt covered with polyfill stuffing. Marina's dress was from a thrift shop. I would like to thank all the bridesmaids that donated their gowns instead of hiding them in the back of the closet.
We were able to reuse the somewhat bedraggled dress this year. Marina was Ophelia from Hamlet. I've mentioned before that she's been reading this Shakespeare folio. She used it as a reference to create the drowned Ophelia.
Chase decided on a store-bought black Spiderman costume. He has promised to create a costume next year. Store-bought costumes are too expensive for my taste.
And Sierra was a queen. I know. This was a bit of a stretch for her majesty--erm--Sierra.
They went trick or treating with a group of homeschooling friends. A great time was had by all and the children traded candy at the end of the evening so that everyone came home with treats they like.