This is a quick tutorial for those lace scraps or pieces you may have. :)
I had this crochet lace piece from the FIDM Scholarship Store for about 25 cents. :D
I got this dress, and loved it, but the neckline was too low for my taste.
I simply placed the crochet lace piece a little higher than the actual neckline. Then, I sewed it along the edge of the neckline. I also used same color thread to make the stitch line as least visible as possible.