I absolute love this idea of using infill structures in 3D printing (the patterned support used inside of objects to provide strength and structure while cutting down on printing time, weight, and filament) as an artistic design.
Here, Joe of Makes’n’Breaks decided to foreground the usually hidden patterns of infill (which are quite lovely) in a series of coasters combining the 3D printed infill structures in a wooden frame. The results are beautiful.