Thanks for the compliments on my 4th of July dress! A couple of you asked about the rick rack edging around the neckline. It's super easy to do. I like this application because it's unexpected; you usually see rick rack applied flat to hems (which I also did on this dress!).
Here's a close up of the neckline.
I lined the dress before adding straps or rick rack. After the lining was flipped to the inside, then I stitched on the rick rack, and then sewed the straps on by hand.
All you need to do is start with a finished edge, whether it be a neckline, hem, etc. Pin the rick rack behind the fabric so that only the "humps" are showing.
Next, edgestitch the garment from the right side, about 1/16 to 1/8" from the edge. I like my Bernina #10 Edgestitch foot for this purpose (a blindhem foot also works, just use the "blade" as your guide and then adjust your needle where you want it to be).
Here's how it looks as it's being stitched.
That's it! I think this would look cool in black on an LBD--very understated and chic, no?