CHECK OUT THIS ILLUSION.
MY ART PAGE https://www.facebook.com/ArtWorksFORjoy/
you can print it,Just open the blend file and see. But you will see that illusion only in one view.
I checked it. The mesh has no wall thickness. It has no solid parts. I think, it is impossible to print in 3D.
YEAH, you are right, I just updated my Blend File.Check it out now.
it do work even in perspective but you have to adjust the camera angel try these camera place number in perspective
location x 124.98183 y -140.62643 z 150.61526
rotation x 50.781 y 0 z 41.973