Is this what you're talking about with the twine? -
Our parish has a project group that makes these. All you need is the thinner (3mm) parachute cord, or twine. The beads are made of barrel knots.
Directions here: knotted rosary.
Thanks, yes the bottom picture is what I make except the cross is entirely knotted cord also.
That post reminds me:
What IS the official teaching (if any) regarding wearing the Rosary? Is it not to be done, or is it permissible?
My former pastor told a parishioner it was ok, but this same parishioner was told by another priest it’s not ok.
There seems to be some ambiguity there. You seem like the best person to ask for a definitive word.