Note, save 15 cm from your thread.
Tie thread at end.
Make another half-node, but smaller. Look at picture
From 3-4 at start, make another half-node.
Make the same half-nodes at equal distances around the hoop.
Last thread node full. Trim the ends of the thread close to the knot and lubricate the assembly with a thin layer of glue.
The first steps we left tails initial cord. Now cut two 30 cm of the cord and tie the segments as in the picture.
pictures from home-sweet.ru/archives/3781