I saw a comment, that someone need the pattern for octagon motif, here it is:
You’ll
need:
Any cotton
yarn;
Crochet
hook 5 mm.
Instructions
1st
rnd: Begin with 4 ch made into a loop or a magic circle.8 dc, ss to first st;
2nd
rnd: (dc, ch 1, dc) in each stitch;
3rd
rnd: (2 dc, ch 2, 2 dc) in each 1 ch space;
4th
rnd: When you work the 3 stitches along the sides, I want you to work into the
spaces between the stitches instead of into the tops of stitches. (dc, ch 2, dc
)in each 2 ch space, dc, htr, dc along sides in between stitches of round 3;
5th
rnd: 3 sc in each 2 ch space, sc in each stitch along the sides.
Fasten off
yarn & weave in ends.
Assembly
Now to join
them as blocks, you’ll need a small square to fill the gaps.
All you’ve
done is made a solid granny using htr (hdc US).
1st
rnd: 4 x 3 hdc groups separated by 4 x 2 ch corners;
2nd
rnd: (hdc, ch 1, hdc) in each 2 ch space,1 hdc in each stitch along sides;
3rd
rnd: 3 sc in each 2 ch space, 1 sc in each stitch along sides.



