The Missouri Star Quilt Co. has a video on making a large star quilt out of 10" squares. It is a very easy pattern to do and looks very nice in 2 or 3 colors. You could cut 4 - 9" squares from each fat qtr., layer 1 print & 1 black square, sew around the outside edges 1/4", cut and make nice large stars. The blocks would be a bit smaller than 24", but still nice large pretty stars. The pattern is at MSQC in their tutorial section. Good luck.