I'm not an excessively PC type of person, but I don't send Christmas Cards to non-Christians. Not because it would offend them but because it seems inappropriate. By the same virtue, Muslim and Jews in my family don't send me Ramadan or Bar Mitzvah cards.
My way around all situations is to get my own cards printed and write in the appropriate message and/or greeting.
This year I've used my pen and ink drawing of the North Portal of Cologne Cathedral for the card, which is a risk as it has to be reduced from an original that I drew of 20 inches high and 11 wide.
I was quite pleased with it the product, including the logo on the back.
My logo comes from my original Pen & Ink drawing of Vincento Lunardi who was the first person to fly in England (not in Britain, as James Tyler beat him by a couple of weeks when he flew in Scotland).
One of my long term hobbies is the protracted writing of the biography of Vincento Lunardi and James Tytler (which I doubt if I will ever finish, but love doing).
I 'got into' these two champions of flight when I was commissioned to design a set of Philatelic First Day Covers for the 1984 bicentenary of Flight in the UK.
Which was the only time my artwork was reproduced on silk