Oldest Pagan Symbols In Christianity The Last Supper

Egg decorating in Slavic culture - Wikipedia.

The tradition of egg decoration in Slavic cultures originated in pagan times, and was transformed by the process of religious syncretism into the Christian Easter egg.Over time, many new techniques were added. Some versions of these decorated eggs have retained their pagan symbolism, while others have added christian symbols and motifs..

https://en.wikipedia.org/wiki/Egg_decorating_in_Slavic_culture.

Santa Claus - Wikipedia.

Santa Claus, also known as Father Christmas, Saint Nicholas, Saint Nick, Kris Kringle, or simply Santa, is a legendary character originating in Western Christian culture who is said to bring children gifts on Christmas Eve of toys and candy or coal or nothing, depending on whether they are "naughty or nice". He supposedly accomplishes this with the aid of Christmas elves, who ....

https://en.wikipedia.org/wiki/Santa_Claus.