I saw In the Mood for Love a few months ago, and was really struck by the fashion, especially the dresses. I love the idea of having one basic style and making it look so different through fabric and trim.
It would probably be pretty easy to get a Cheongsam pattern and find some nifty fabric, but if you look you can find some interesting vintage ones on ebay or etsy. I prefer etsy because I consistently lose autions on ebay . . .