Last week on Discovery Channel they had a story on a program called "Facegen" (www.facegen.com).
This program is really cool. Take three pictures of your face, one from the front, and one from each side. Mark common points on this face (nose, eyes, chin, etc.). The system will then create a 3-d model of your face made up of about 6500 points.
Once you have this 3D model, you can then modify it. You can go as detailed as adjusting each point. But it's the default adjustments that are really cool. For example, you can modify your face to look like a different race, change your gender, even change your age.
The software is used a lot by police forensic artists, character development in computer games, etc.
The best part is you can download and use the program for free. The only catch is the trial program won't let you save the generated 3D model. Since it takes about an hour to generate the models, this can be a huge incentive to spend the $250 to register the software.
Here's some examples of what it did with my face