These are items which are attached to a machine by various methods to increase its versatility. Some I list will attach to the presser bar, but I feel them more correctly called attachments than accessory feet (See Also). Some commonly encountered attachmants are; Seam Guide, Underbraider, Tuckmarker, Ruffler, Buttonhole, Zig-Zag & Walking Foot attchments. Less commonly encountered are Embroidery (these date well back into the 1800's) & Monogram attachments. Feel free to edit & add as you see fit.