If you go to Quilter's cache, Marcia has lots of blocks paired up with other blocks. You can see what the secondary pattern is and chose. Then make both blocks in your colors. Someone had a quilt she saw on a calendar. She figured the blocks out and I made 2 of them. The quilt was called Shades of Green, and to this day is still one my favorite quilts. Very scrappy, just loads of different greens and neutrals. Let us know what you decide.