Bowen Knot

The Command Key on an Apple Mac.

Asked about it on StackExchange.

Here’s the answer.

And my render (from there)

do it with a closed bezier curve in 3D

happy bl

I believe that’s what Lemon did (@ StackExchange), by his example (solution) but he began with Mesh (easier to control) and then converted to Bezier.

So same solution, different direction.