This is a finalist in the Best Illusion of the Year Contest 2016, titled the Ambiguous Cylinder Illusion. However we like to call it the “Squircle”. It’s been popping up all over the internet, and has already been “reverse engineered” into a downloadable 3D printer file.

There’s also plenty more variations of this illusion, you can check out all of them in the original video on Youtube:

Squircle Illusion

Doesn’t get any neater than that, we can’t wait to 3D print our own and try to drink our morning coffees with it.

Click NEXT to watch the detailed “reverse engineering” video from the Youtube user who figured out how it’s done.