This is my submission for the assignment.
I tried to be creative with this assignment. I wanted a little more than a standard shadow, so I asked my partner to pose for this picture. I set my shutter speed to 4 seconds and asked him to move after 2. The idea was to create a shadowy version of the subject, which turned out really good to my liking!
No post, original picture (but you might have to brighten up your screen to view it in its full glory ^_^)
Exif on flickr
http://flickr.com/photo_exif.gne?id=2303134628