Wrap and prep a Combination 10 Division. You can use any thread for marking but, the marking threads will not (or, should not) show when complete so marking in a color similar or not in high contrast to the mari wrap may be desirable.

Locate the center pentagons on the C10. Also locate the intersecting/adjacent diamonds and trangles as shown in the diagrams. These are the shapes you will be using to stitch. All starting points are half way between the shapes' centers and bordering points. The starting points will be right next to each other, as shown. The best result is to try to tuck these starting points as close to each other (but not overlapping). You can stitch any of the shapes in any order, but I recommend doing the pentagons and triangles first, as the side points of the diamonds will fit better after knowing the exact placing of the sides of the adjacent triangles. All stitches are worked in the SakasaUwagake Kagari stitch arrangment; all subsequent rows are worked under and around the stitches and threads of the previous rows.

In this close up of the triangle, the numbers show the stitching arrangement and sequence. On all rows (yellow was first, then blue, then pink, then orange, then white) the needle was entered and then brought up at point 1, taken to point 2 where it was entered and passed under/around the marking line and any previous rows; brough up and exited at point 3; carried to point 4 and so forth. All of the stitching of the shapes is worked in this manner. I chose to close in to the centers of all shapes - you can leave a bit of open space if you wish.