i'm also doing one. my center hex is yellow the next row "just an example" is light pink, 6 hexes. the next row say, dark pink is 12 hexes. a hex has 6 sides, you add another hex to each side. make sure you are working with an evenly cut hex, all sides equal. if i can figure out how, i'll post some pics tomorrow. good at sewing not so good with the computer.