I bring this up because there is an opportunity for you to create multiple income streams from the ZS label if/when it takes off. Selling licensing rights to print companies would be a good one.

If a company has interest in publishing your intellectual property, they will want to get as much profit as possible while paying you as little as possible. It will happen if you have not protected yourself in every profitable angle possible. Get some good legal advice. Not doing so slams most entrepreneurs => expensive lessons in business.