I love this autumn medallion pattern from The Bargello Edit. It’s free to download.
The pattern is in Brick Stitch with the stitches over two threads with a step of one thread. If you have friends who do Peyote Stitch beading, they can also use this pattern.
I love it in these fall colors, but you could also make the centers look like jewels by stitching them in metallics. Or make the outlines stand out by making them in a bold accent color.