Take something you really love, a letter, envelope, photograph, a ticket stub... anything - to a printing place like Kinkos and have them blow it up for you to hang as art. An old recipe from your Grandma would be great for the kitchen. What a fabulous idea!
Place a photo of your grandma with your mom, and a photo of your mom with you. Then me and my children... New way to show generation photo when not able to do one in person. This would be a wonderful gift for my mom and grandma.