This is a sample from the K4W community. Josh Blake, K4W MVP, built an application that allows you to create a 3D model of your head using Kinect for Windows. The model can be exported and even replicated using a 3D printer. Send one to your grandma!
This video provides a quick demonstration of the features of the application. Check out part two which walks through the important parts of the code.
Full source code is published under an open source license at http://facefusion.codeplex.com