In the politically progressive circles I run in, an orange is standard for the seder plate. This tradition is maybe 30 years old, and yet its origins are already lost in myth. The seder is the traditional Passover ritual and meal. The seder plate contains various symbolic foods--matzo, roasted egg, horseradish, etc. In recent decades, it's become common to place an orange on the seder plate. Depending on who you ask, it represents either egalitarianism (women and men are equal and can do the same ceremonies), welcoming the previously-rejected LGBT community, or both. There's considerable controversy about where this tradition started. More than one person has claimed to have come up with the idea. There are multiple origin stories. A friend of mine has done considerable research on the subject, but he can't give a definitive answer. My favorite origin story is almost certainly untrue: An Orthodox rabbi, or perhaps a politically-conservative Conservative rabbi, allegedly complained that a woman on the beema (pulpit) is as out of place as an orange on the seder plate. So someone go the idea of putting an orange on the seder plate to remind people that there's nothing out of place about a woman on the beema. To my mind, this is a good, concise example of how religions work. People get ideas, alter traditions, and help their faiths evolve. And the details get lost into myth. I like that.