This one, was an experiment some time ago when Molly at Molly Bee's Attic, came up with a new design Pwuzzle, mimicking the pussy-willow. Molly Doodles is a new site for Molly's zentangle-inspired-art, but it doesn't include the original post to this design it seems.
So while we have fun getting lost in tangles, it can happen, that you draw up and experiment something that you think is somewhat original. Normie Rowe, Aussie rock-singer from the 60's had a hit single "It Ain't Necessarily So" ........
When I'd first started tangling in February, I posted this link to a design I conjured up.
Tangle Patterns, there was Facets, by Nancy Pinke, CZT. It jumped out at me; my own design is then, a variation as it happens, of Nancy's own original.
See how to draw Facets on the official zentangle site here.