I think this has to be the ugliest fabric I've ever stitched in terms of texture, etc!
Copper dyed silk stretchy crepe de chine. Machine stitched with Aurifil wool and cotton threads. Wool quilt batting, cochineal dyed cotton backing fabric.
Oops, and this is why it's called practice, I meant to stitch around these holes, holes that were created in the stitching process. The two threads are the same color, one is cotton, they other wool.