Hello!
Please Excuse my tardiness in answering your questions. Thank you for your compliments my knots.
1. I'm weaving my knots out of the flat cable with two cores. Its cross-section resembles a figure lying eight or dumbbell. I do not know its English name. We call it soutache.
2. To preserve the shape of my knots, I apply glue (on the tip of the needle). I usually glue weaving on the outer contour and inner openings my knot.
Forgive me my English.
Tatian