Egg-Shape Mechanics

In further contemplation of how to make an egg-shape I have come across a web page featuring mathematical formula. I find it interesting that a chicken does not sit down and contemplate these little symmetrically aesthetic containers that will make it through a tightly constricting orifice after only a bit of calcium-coated perfection.

http://www.mathematische-basteleien.de/eggcurves.htm

Thusly, I find some aesthetic modifications I would like to go by in a scale drawing.