If you've never attempted sewing your own panties, I urge you to give it a try. You'll need approximately one yard of lace (more or less depending on your hip size) and a small piece of cotton knit. I prefer cotton jersey.
The panties I'm going to show you today are called Stretch Lace Panties. Sometimes they are called Brazilian Huggers or Hipsters. They take only three seams to sew together. The cotton lining is optional, though I highly recommend taking the extra few minutes to add one.
Here's what your two pieces of stretch lace will look like once you've cut them:
You'll line them up, right sides together, and sew down one of the curved sides. This will create your center front seam.
Here's how the first seam will appear:
Sew the other curved side the same way. With right sides remaining together, line up your seams to sew the crotch area. Cut a small strip of cotton knit (mine is about 6 inches long and 2 - 2½ inches wide) and pin to inside crotch area. I find it easiest to start pinning at the center of the crotch, where all the seams meet up, and work my way to the end of the cotton piece. It should look like this.
Using a stretch stitch or narrow zig-zag, stitch the cotton lining in place. You may find it easier to sew down one long side, remove from machine; and then sew down the other long side in the same direction. Then you will sew the two shorter sides. Here's a completed lining:
Turn your panties right side out, and your finished!
Isn't that simple?!? If you have a pair of Brazilian Huggers, you can use them as your pattern. If you need a pattern, I recommend Jalie 2568 (NAYY). I don't know that I'll ever buy panties again.