I just had to report that I got two new feet--for my Designer 1--yesterday. The Viking dealer in a nearby Joann's is going out of business. That's not good news, but their remaining stock was 70% off! (Several weeks ago, I had managed to replace my "R" plastic embroidery foot and a small spool cap at 30% off.) I went back to get the Spanish Hemstitch Foot and the accompanying throat plate, hoping but not knowing they had further reductions. I got that and a foot that holds your button in place while you sew it on. It seems a lot niftier than having to tape the button over the gray gizmo and hope it doesn't slip, like I've been doing for years. The button foot also has a lever to push, depending on whether or not you want a thread shank. Since I only paid about $10.50 for it after the reduction, I figured I'd give it a go!
I did take time to try out the Spanish Hemstitch Foot before supper, and I really like it with the feather stitch. (I once bought the hemstitch fork, but never used it. Maybe I can sell it.)
I'd post pictures, but I'm getting ready to go on vacation today (driving) with my family, so I'd better get a move on.