Looking for a stylish, slightly menacing way to store your keys? The "rattlesnake tie" is in actuality Clifford W. Ashley's Over-And-Under Heaving Line Knot or ABOK #541. That said, the rattlesnake tie is a whole lot easier to say and remember, so that name is used here.
It derives from the look of the rattlesnake tail. Or, more specifically, the series of nested hollow scales that form the tail. Learn how to make it with this crafty how-to.