If you go to the Tiny Prints website, you can upload photos and make a personalized Mother's Day card. There are numerous designs to choose from.
Use the code MDAY99 and the card will cost just $.99. You can even have the website take care of sending the card by entering the recipient's address and adding $.44 for the stamp.
I made one for my Mother-in-law in Illinois with the Buckman Boys' pictures. Total cost: $1.43. I hope she likes it.