Recently, Margaret Bremner, CZT, posted some examples of a 'string' she uses for her tangles. (see the post: "Rope" string idea). I love her work. Her linework is so good, and she has such an excellent sense of negative and positive space, so her Zentangle always seem so balanced.
I loved her idea, but at the time I saw the post I was enamored with Gellyroll pen on black paper, and I immediately wanted to draw ropes of color. I can't call this a Zentangle by any means, and I didn't quite follow Margaret's idea. This was definitely a result of her inspiration, though.