There is a certain artistic merit to using machine tools to make metal parts. In this case, there are no metal parts, yet the end result is still art.

Boston, Massachusetts engineering consultant Aaron Panone worked with artist Matt W. Moore on these original works of art, which were created using a CNC machine tool. A router from Zenbot was equipped with a Sharpie marker in place of a tool, using this toolholder (or Sharpieholder) that Mr. Panone developed. Watch video.