This ornament is shaped like the President's initials and colored like traditional Christmas ribbon candy. It was made with biodegradable PLA on a MakerBot printer. Plain and inexpensive pigment-free filament looks like crystal or ice. Periodically changing the filament to obtain the different colors reduces the likelihood of a filament jam. The ornament does not require selective laser sintering or any of the other more expensive techniques. A plain filament printer will do. In fact, such printers do very well when one wants parallel layers of different colors. Happy holidays!
Robert, Seattle, November 10