You know, a 17 year old may not appreciate the work that went into making the quilt, but I hate to say it, her mother or father should have. Especially if it was given to her by her grandmother. I am sorry for being so blunt, that's just my opinion.
I can understand your reluctance in making another quilt, but there is someone out there that would LOVE a handmade gift. (especially me!!!!! :-)