What are some good things to write inside a christmas card for children?

I need to make christmas cards for kids, but I dont know what to write on the inside of the card, or even the outside. Please help, i want this to make the kids happy when they open them on christmas.|||Say what you mean and mean what you say – easier said than done, that’s for sure. When it comes to our kids, our words don’t always have the intended effect, even with the best intentions. "A Merry Christmas and a Happy New Year to You" was printed on the first Christmas card. more info you can check the source box.