Lots of shops with the name Nana but nothing with fabric with it. Depending on how large the quilt you could find a way to put it on the fabric and dye it. Why not they do tie dying? If you had a large stamp made with Nana on it it could be done.
I saw one done for a mother in law by her dau in law and it was muslin with hand prints of all her children, spouces and grandchildren. Then all the muslin squares were beautifully tied together with various blues (the mother in laws colors) and it was a memory for her. Maybe that will give you some ideas.