Decorating Easter Eggs

Elaborate Easter egg decorations have a long history in some parts of central and Eastern Europe, especially in the Sorbian regions between Germany and Poland and the Ukraine, where the art is called Pysanky. There are various books available about the practice and history of this art, which often includes dozens of colors in symmetrical patterns and simplified shapes representing elements of the Easter holiday.
 
Typically, the egg is decorated with intricate symmetric patterns drawn in hot wax using copper styli. Then the egg is dipped into different colored dyes, and the wax is melted and rubbed off, leaving behind the colored patterns.

Below is a Mathematica version of these kind of Easter egg decorations. This code, with detailed steps and explanations, will appear in the next edition of The Mathematica GuideBook for Graphics. 

Some hints for decorating an egg:
• One can move the crosses in the "carving canvas" to design a pattern.
• It is easiest/fastest to decorate a low grade ('baking') egg to your liking, and then after finishing the decorations, upgrade to a 'free range' egg (which has a smoother shape).

Have fun!