Thanks to Random Good Stuff for pointing me to the Knicker Picker service.
It's an "interactive dressing room" where you can direct any one of three models to show off a large variety of lingerie. They can walk close to or farther away from the camera and turn around.
Very nicely done!
The only problem I can see with it is that a large percentage of shoppers are likely to spend far more time playing with the interface than purchasing anything :-).