So, you will need the following:
red, orange and green cotton;
linen for the bottom side of the pad;
a small piece of white cotton for the base of the appliqué;
double-sided fusible woven web;
wool filler for quilting or padding polyester;
thread, scissors, a pencil, a water-soluble marker, a ruler.
Now, remember the school geometry course and draw a hexagon with 3 cm wide sides.
coloured cotton: 6 hexagons of red-orange cotton and 13 green hexagons;
white cotton: a circle by a pattern with the addition along the contour of 1.5 cm (the addition makes it easier to align the finished appliqué);
linen: a circle by a pattern with addition of 1.5 cm along the contour;
fusible web: a circle by a pattern;
padding polyester: two circles by a pattern.
Pin everything together, set the sewing machine on a decorative stitch (or zigzag), and stitch all the sections of hexagons.
Make one more "sandwich" with a linen bottom, a layer of padding polyester and a quilted top. Pin everything together and stitch exactly in the seam on all sides of the hexagons. It is convenient to use a monofilament thread — it is hardly visible from the front side of the product and it doesn't spoil the look of decorative stitches.