I have to agree with sgarner; except I would wait longer than a month. Give her time to morn. There are 3 stages in loosing aloved on. Sorrow, anger and acceptance. People react differently and it takes longer for some. Watch for the stages. Then ask what her favoriate memories were of her mother. I would not make anything out of her clothes. I would take the information from her memories and then incorporate them into a quilt. Use 1 or two memories. Most important, comfort her by letting her know you are there, even if you are miles away.