My first ever tessellation, redrawn from scratch, to show the series of steps required to achieve a successfully nested shape.
The original image was a pencil sketch from years ago. Before Windows 3.1 and way before the iPad. And I could not afford an Amiga computer, even less the first Mac. So cardboard, pencils, scissors and lots of graph paper it was.
Here is the original drawing, from quite a few years ago.