some truchet tiles i did for a plotter a million years ago:

hex:

https://www.instagram.com/p/B2TRmM7p1BB

https://www.instagram.com/p/B2Q130pJwum

rectangular:

https://www.instagram.com/p/BxUMO05p3Cx

https://www.instagram.com/p/BxO1H3cJ57V

Man, I've tried writing my own version of things like this, but it ended up looking like pubes on paper.

Nice.

It's a shame that regular octagons do not tile the plane. Octagons + squares might work I suppose.

You can use the monotile! See my links below.

Ah perfect! I went away at lunch and tried to work it out, including for the spectre tile (monotile), although I took a different approach.