Knots

Knot tying can lead to all kinds of history and geography. Hunters, traps, climbing, ships (wrapped bottles, in addition to all kinds of sail rigging and tethering knots), and cowboy stuff, and...

SandraDodd.com/math/knots

The photo isn't of tied knots, but drawn and painted knots, by Keith Dodd. Keith knows lots of knots, with rope, but I don't have photos. What's there looks confusing. It's a three-legged tooled-leather-seated folding stool with a painted shield leaning on it.