I would make a lovely quilt from you to her and not a hint of it relating to her Mom. She will probably have a lot of emotions to sort through some which may not be very pleasant. In time you may make a memory quilt based on how you know how she feels about her mom and how she feels about the taking of her own life. If it is something that takes her a long time to really deal with then at least you made a nice momory between you and her at a time of her need.