I've been entranced with these since seeing them from a [url=https://szimmetria-airtemmizs.tumblr.com/post/714880350281760768/i-always-liked-complex-patterns-that-were-created]szimmetria airtemmizs post[/url].[br][br]It's a coloring of a hexagon that has aperiodic matching conditions, but periodic, too. If you download the applet there's a tool to make more tiles if you need them.