This remarkable shape resembles two simple yet drastically different shapes in one! With a mirror, you can see both perspectives simultaneously. Truly mind-blowing!

This is my variation of Dr. Kokichi Sugihara's Ambiguous Cylinder Illusion, featuring a circle and a triangle. I printed it with MatterHackers Quantum PLA to get two distinct colors.

I had success printing at 0.12mm-0.16mm layer height. Smaller layer height should significantly improve the top surface.

2 shells, 0% infill, 6 top and bottom layers.

There are also two versions of the base, and two lengths of printable rods for the base. You can also use any 1/8" rods and perhaps some E6000 adhesive to secure them into place.