Inspired by topographic maps, designers Alexandra Deschamps-Sonsino, Karola Torkos and Thomasine Barnekow created Topoware, dishes that "outline" the dining experience. Bonus: the lines tell you how much food to put on the plate based on how hungry you are at the moment!
Link - via Mike Ballan
They didn't push this idea far enough. It would be a lot more compelling if the dishes were irregularly shaped, like topography, so the lines actually meant something; true topo lines on a circular dish like this would just be horizontal circles.
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