Yup - a Style-o-matic. They aren't really super great for using, but the scarcity of them makes them sought after.
I still need a Penguin foot, and the larger darning hoop, and then I have pretty much the whole set of "fashion aids" though I don't have all the boxes or original manuals, but I'm not going to get super anal about stuff like that. It would be fun to find a case for them, but it would have to be in some corner of an antique mall, or garage sale, as those that show up on eBay sell for a lot.
The "funny looking ruffler" in the upper left is for a WW 9, so a much earlier item than the others.
Two of my favorite attachments are two slightly different side mount zigzag attachments. I don't think they are very sought after, but they are rare.