Just an idea, but why not tell them that if they want quilts, they have to come shopping with you to buy the materials. Then they can have the fun of picking out the fabrics and your peace of mind will be assured when you see them pay for it all. As for the time, if you don't want to make a quilt you can always say, "I wish I had the time, but I'm afraid I don't right now." For me, all my quilting and sewing has to be a joyous experience - even the seam ripping part - or it's just not quilty.