Last time I was in Florida, I "stole" a gorgeous black and white picture of mom when she was about 6 to hang in my house. It was just sitting in the closet so I didn't feel bad about it. I scanned it in to send a copy to my brother and sister and then decided to play with the black and white print.
I used colored pencils and oil pastels and tissue paper and glue. I think Mom will love it for Mothers day.