Have you thought about turning the deskmat graphics into something that could be used as a desktop wallpaper?
Ideally, it would be a design with the same cues as the mats you already have, but is still something unique enough to stand alone on someone's monitor.
Also, someone may have already mentioned this, but is there the possibility of getting some custom cables to fit the design too?
I'm definitely in on this set and mousemats though! Looks incredible!