From Betty The collars made from Battenburg lace are very easy to make - but rather expensive. The centers of the doilies are cloth so you simply lay your collar pattern down and cut the neck opening to fit and split it down the back. The 6" doilies fit the dolls. You can bind the neck with bias tape to make a detachable collar or sew it into the neck as you would any collar. They come in round and square shapes and are sold in many places, including Home Sew catalog, Walmart, and every craft store I've ever been in. The Wimpoles of Barett St. (or Baretts of Wimpole St. - I forget which) specialize in imported Battenburg lace so they have many ideas on how to use the doilies. Just be sure the center fabric is large enough to accommodate the neck opening and you're in business. I love making these collars. They are so simple and so regal looking when finished. Also from Betty I do detachable collars several different ways - sometimes with a row of lace around the neck, other times with a bias tape binding, which is faster. For the fastening, I extend the neckline bias tape about 1/2" (if I'm using it) and put the bottom half of the snap on the extension so the two back edges just bump and don't overlap. If it is going to overlap you need to add seam allowances. One trick I use is to trace several collars on white fabric so they are almost touching. I have round, square, and long V templates. It is much easier to use hoops when embroidering on this larger piece than it is on individual cutout collars. After the embroidery is finished I cut them out and sew lace around the outside edges stopping 1/4" from back edges. Then I pin the collar, face down to a plain piece of white and stitch all around the outside edge and up the back before I cut it out. After trimming and turning I finish the neckline and fastener - either a snap or velcro. If you use the tape binding trim off 1/4" of collar opening so it won't be too tight. I've found that working with the larger pieces is so much easier. Right now I'm working on a set of eight. Sometimes I only do four at a time. From Virginia I don't do snaps on detachable collars, because it requires an overlap. Rather, I use a hook and eye, the eye being the loop style. I place both on the underside of the collar, placed so that the backs just meet but do not overlap. Alternatively, for crocheted detachable collars, I crochet on a loop when I am edging around the collar and fasten with a mother-of-pearl or pearl button--sometimes a crystal button if it goes better with the color. I prefer to line the collar rather than doing a bias binding at the neckline. Then, right sides together, I sew most of the way around, leaving a small opening in the back; clip seam allowances; turn, press, and blindstitch the little open spot together.