1. Print this AR marker (.pdf format).
2. Allow the Flash Player above access to your webcam.
3. If you are on a Mac you may need to change the settings for your webcam to work. -> Right-click on the Flash Player -> Choose Settings -> Click on the Webcam-Icon -> Try some camera-settings from the drop-down-list untill you get an image.
4. Point your webcam at the printed AR marker. Don't block any of the corners of the black marker. Manipulate the animation by moving the marker.