We originally had a small DVD in our Zentangle Kit. When it was in it's sleeve it was about the same size as our tiles and that was neat.
However this small DVD can't run in increasingly popular slot-loading DVD players like in most Apple computers. It was becoming too much of a hassle for us and our customers. Now we ship full-size DVDs with all our kits.
To create a larger label, Maria copied a small DVD at 200% and taped it to a large sheet of our Zentangle tile paper. She drew a circle for our border, strings within that, and then we tangled away. We didn't shade it because of the silkscreen printing method.
This larger DVD label provides another good visual example of using various tangles.
Click images for larger view.