Egg decorating is the art or craft of decorating eggs. It is quite a popular art/craft form because of the attractive, smooth, oval shape of the egg. Any bird egg can be facilitated in this process, but most often the larger and stronger the eggshell is, the more favoured it will be by decorators.
Goose, duck and hens' eggs are usually "blown" - a hole is made in each end and the contents are blown out. The egg is then either carved, dyed, painted, appliqued or otherwise decorated (using a number of different techniques). Egg decoration is particularly popular in Eastern European countries.
Some eggs, like emu or ostrich eggs, are so large and strong that the shells may be carved without breaking. Decorations on emu eggs take advantage of the contrast in colours between the dark green mottled outside of the shell and the shell-underlay. The oldest eggshells, decorated with engraved hatched patterns, are dated for 60 000 years ago and were found at Diepkloof Rock Shelter in South Africa.
Eastern European cultures, and particularly Slavic ones, also have a strong tradition of decorating eggs. Chicken, duck and goose eggs are deocrated variously with batik dyeing, applique, scratch-work, wax encaustic and carving. The renowned Russian court artist and jeweller Peter Carl Fabergé made exquisitely decorated precious metal and gemstone eggs for the Romanovs. These Fabergé eggs resembled standard decorated eggs, but they were made from gold and precious stones.
The Persian culture also has a tradition of egg decorating, which takes place during the spring equinox. This time marks the Persian New Year, and is referred to as Nowruz. Family members decorate eggs together and place them in a bowl. It is said that it is from this cultural tradition that the Christian practice originates.