Highly inspired by SH's Chaos Road Tile. I wanted a version without the street features, so I started from scratch and rebuilt the main shapes in Fusion360. I learned a few good things in the process. Mine is 80mm wide from point to point, 69mm wide from edge to edge.

Mess around with the top pattern to make it more pleasing to the eye. Change the bottom fill pattern if you'd like to use the bottom for another design. 

Printed with Prusa's standard 0.3mm Draft settings.