I do not understand why some people would consider sending nasty cards. After all, Christmas is supposed to be a festival, and for Christians a time of celebration of the birth of Christ. Some years ago, I was the recipient of an inappropriate Christmas card which I won't describe here as my post would be edited out! I was extremely embarrassed and upset, and fortunately managed to destroy it before DH or our children saw it! DH would have been making blistering phone calls to my workplace as it came from a colleague, admittedly of very limited intelligence, in worktime. However, it was a horrible experience for me.
On a more pleasant note, many of my friends - and relatives - appreciate receiving Jacqui Lawson eCards, so they will get those with the possibility of one of her Advent Calendars as well. And, yes, I have made a donation to a charity to allow for the lack of cost to me!
When I visited our local garden centre recently, I found they had charity cards on sale which actually had Nativity scenes on them which is quite a rarity these days. Others on my card list will get one of those. The greeting inside is "Christmas wishes" which, for most people I know, is far more appropriate than "Merry" or "Happy" Christmas this year.
(That reminds me, sadly, I need yet more sympathy cards. I used my last two last week, which makes an average of around 2 per month this year. Normally I would choose them individually, but at the moment I like to have a stock of cards for all occasions.)