For two years now I've given both my and my husband's grandmas the same Christmas present. Once a month I send a card with a note and recent picture of the kids. They've told me they love it, and it keeps me taking pictures of the kids as well as giving me a reason to keep making cards!
Here are the ones I just made for July. The bird is a DtsArt file and the font for "hello" is TypoUpright BT. (My husband said the one on the right looks a little of what you might get if the red and blue Angry birds got together.)