Yep. A big ol' Christmas tree, next to a big ol' menorah. You could even throw the atheists a big ol' patch of nothing nearby, just to keep them happy.
Nah, that would not make them happy. The only thing that makes them happy is to spoil things for everyone else, making everyone else unhappy. Sort of a variation on the sterotype of Purtians, who cannot abide it that somewhere, someplace, someone is happy and enjoying themselves.