I've made a memory quilt with photo transfers for my parents' 50th anniversary in 1999. The photos are a bit faded now, and in retrospect, I would do something different. However, you have to take into consideration the change in technology in the last 13 years. I also made a memory quilt for my grandmother's 84th birthday, but I made one block for each member of the family using fans for the women and bowties for the men and labeling each one via embroidery with their birthdates. It is still a showpiece. Good luck with your choice and your project. Grandma's gonna love it no matter what you decide!