From the book LEO the Maker Prince:
leothemakerprince.com
amazon.com/LEO-Maker-Prince-Journeys-Printing/dp/1457183145
LEO's robot friend Claude-8 worked with a chef named Emilie to create a special dish that's a chess set made of 3D printed cheese. Carla and her team collaborated with Cornell University's Creative Machines Lab to develop forms that would work best with a food printer.
Chess pieces are solid and "2.5D" (not overhangs) so that they print in FDM cheese without sagging.