Will your mini-quilt for your friend be hung on the wall or used as a lap quilt? The stuffing will not work for a quilt that will be washed unless you quilted very closely together and then it would not be puffy. If you have enough batting to put 2 layers, that would work. If you only have enough batt for 1 layer, ask your Grandmother if she has an old blanket you can use to add another layer of thickness. Best of luck to you on your project.