Decorated eggs are much older than Easter, and both eggs and rabbit?s are age-old [fertility symbol]?s. The Passover Seder? service uses a hard-cooked egg flavored with salt water as a symbol both of new life and the Temple service in Jerusalem. The Jewish tradition may have come from earlier Roman Spring? feasts.
Easter Egg origin stories abound -- one has an emperor claiming that the Resurrection? was as likely as eggs turning red; more prosaically the Easter Egg tradition may have celebrated the end of the privations of Lent?.
Easter eggs are a widely popular symbol of new life in Poland and other Slavic countries [folk tradition]?s. A batik-like decorating process known as [Pisanki] produces intricate, brilliantly-colored eggs. The celebrated [[Faberge| Peter Carl Faberg?] workshops created exquisite jewelled Easter Eggs for the Russian Imperial Court.
There are many other decoration techniques and numerous traditions of giving them as a token of friendship, love or good wishes.