My Hexie's are just those red & blue. I got a box full of red, blue & tan squares several years ago. The fabric is sateen cotton. I was at a private estate sale. When the lady saw me buying sewing stuff she asked me if I was a quilter & I said yes. She went inside & brought me a box full of these squares. I decided right then & there they would be my GFG. I did go & buy some green sateen fabric to go w/it as leaf units. I have about 30 flowers sewn together. This is my loooooong term project. I only work on it in the truck or at Dr offices & in emergency rooms. It takes longer to baste the hexies now than to sew 'em together.