Some people have a lot of time on their hands. Take for example Oleskiy Pikalo who apparently wanted to make his own latte art, but not, you know, actually have to make it. So he hooked up an old printer and some edible ink, and well, all of you latte art maestros had better watch your backs. Or not. It does take about two minutes for the machine to complete its designs. Not sure how well that would in your shop.