'http://notesfromnancy.blogspot.com
Blogarama
It seems to me that all one has to do is say "Merry Christmas" and if the person spoken to does not celebrate Christmas, says back, "Season's Greetings" or "Happy Holidays". I could be wrong, but I think Kwannzaa and Haunakah both use candles as symbols. Actually, trees are not really part of the true meaning of Christmas, either.