Printers + Most sexy option made me think of a 3D store. Launch it on your ipad, pick a design, tailor it, have it printed on a good 3D printer and delivered at your home. Apple takes a cut (30-70 split of the margin that the developer set), but guarantees that the designs do not leak out.

Of course, this is 'some time' (20 years?) off, but I certainly would like to see such a store happen.