Hello, 

I created an automatic chicken movement from an egg. 

I am attaching models in 3MF + STL format (I had problems with CAD inventor to next modify the model which I created - I had to modify model in slicer program).

Arduino NANO control unit + SG90 180° as servo motor. 

The chicken can open the egg more, it depends on what program you make :-)

Short and easy program Arduino in the attachment as picture.

Enjoy!

Easter Surprise (youtube.com)