I love this idea from Inchmark for her Grandma's 90 birthday. She had all the children, grandchildren and great grandchildren (all 80 of them) take a page and write down a memory of her. Some did a couple to add up to 90. She then compiled a book with their thoughts and pictures. So adorable! My Mom turns 82 this year and I would love to have our family do this for her when she turns 90.