Here's one of my last Christmas cards. I'm too cheap to buy bingo cards so I created my own; Believe Bingo Card. The bottom reads:
May your Christmas sparkle with moments of love, laughter and goodwill.
May the year ahead be full of contentment and joy.
Have a Merry Christmas.
The bingo card measures 3"x2.5", you may not want to print it smaller; the wording will be difficult to read.