Have you tried Castle Cord yet?
Like most good ideas and their originators it has been copied but never remove equaled.
The vibrant colors and special weave of Castle Cord make it the ultimate magician’s rope in the world!
It haven’t a sponge core so is easy to cut and it can be sealed with adhesive.
Its diameter of 10 mm approx. (0,4″)
They give you a firmness and a spectacular fall for any of your routines.