Here are my favourites from Chanel's fall 2008 collection in both Ready-to-Wear and Couture.
Ready-to-Wear:
Couture:

Blair's bedroom also has this picture of Audrey framed.
The Christmas episode was called Roman Holiday. Blair's father and his boyfriend (Roman) come for Christmas. While they were they her father told her that they got a cat and named it Cat for for (the cat in Breafast at Tiffany's was named Cat)