I don't get why this is unusual. I mean snowflakes are ALL hexagons too, when you get down to it...and what about the golden mean, it's everywhere. Certain matter behaves in certain fashion under pressures or during chemical processes. A geometric shape doesn't imply abnormality at all.
Is cord stop the right word? The little thing that tightens a bag or adjusts an item of clothing with a draw string closure--it grips rather than ties. cord grip? cord stop? cord toggle? banana?
It says "Stop Thief" on it, if you flip your head.
Or it could be a bannana lock. little loop around a banana bunch, big loop around the tree?