I just bottled the wine that I started making last September. There were dregs from decanting the clear wine, that I didn't want to throw out, so I filtered them and put them aside to make vinegar. I added a starter culture of some cider vinegar I had made a few months ago. This batch of wine vinegar has only been going for about a week but already the mother has formed on top. It was fascinating, rather than being the usual smooth gelatinous mass, this has formed a complex wrinkled surface.