Birthday - Augmented Reality is a 3d model with animation and music, you need to print the QR code before you can see the effect.
See how it works:
https://youtu.be/dXc6ocBH4n0
QR code:
https://www.dropbox.com/s/w1jhyyawcwb9dwy/Markers.png?dl=0
https://drive.google.com/file/d/0B5EAmJwKj_f5Vk5KZmZxZVZfdjA/view?usp=sharing