Schrödinger's cat. Instead of initial superposition of alive and dead cat suggested by Schrödinger here is used more appropriate superposition of hungry and fed cat. Feeder is controlled by quantum event. 3D model was used for picture in this (not very serious) [post](https://ayvlasov.wordpress.com/2012/11/12/black-cat-in-black-box/). See also more [recent version](https://skfb.ly/GZTR) of the model (using Substance Painter).

And, finally [...](https://en.wikipedia.org/wiki/Cheshire_Cat) grin without Schrödinger's cat
