I took a picture one of my daughters created (she's 47 now) and reproduced it in fabric. She made it when she was in the 3rd grade. I only made it for a picture frame 15 x 12 inches but I could have easily enlarged it to a wall hanging size. It looked exactly like the picture she made. Just an idea but thought the girls might like to see their art work recreated by grandma for their room. Maybe their mom has some of their art work she has saved.