OK, they are all featured on US postage stamps?
Meanwhile in Canada we are expanding the Christmas Stamp program by adding a Hannukah stamp and plan on adding one for Diwali.
And to commemorate the Atheist Jackass who forced Saskatoon buses to stop scrolling "Merry Christmas" on their destination boards, let me suggest a stamp with a drawing of Ebeneezer Scrooge and the legend, "Bah! Humbug!"