Coke did it first, but look at this!

For the Feb/March 2015 edition of Labels & Labeling, the special front cover was printed digitally on an HP Indigo 10000 press. Every subscriber’s copy of the magazine has a different design variation – and that’s 16,000 unique cover designs. Read an account from Andy Thomas is Group Managing Editor of Labels & Labeling magazine and Labels & Labeling China, both published by Tarsus Group.
http://www.labelsandlabeling.com/opinion/latest/coca-cola-points-way-labels-labeling-cover