Check Quilter's Cache for Floating Stars - It has an optical illusion and all you cut out are 2-1/2x2-1/2" squares and 4-1/2x 2-1/2 rectangles. Fast and easy. I am making mine with 216 squares of each, cut the 2-1/2 into triangles and sew them to the 4-1/2x 2-1/2. It will be about 52x80 (give or take) and makes a lovely throw. All you need is two colors - a background and whatever you want for the triangles. Edie