An easy as simple way to dress up sleeves:
Petal Sleeve Tutorialo1 Cut a rectangle that extends 1 1/2-2" beyond the center of the sleeve. Round one corner and cut 7 more "petals".
o2 Clip piping so it will easily curve around the bottom of the petal and stitch in place as close to the piping as you can get. Using a zipper foot or a foot with a groove on the bottom helps to do this.
o3 Sew the other half of the petal on the piece with the piping already sewn on. Pin and stitch, following the previous stitching line.
o4 Clip triangles along the entire sewn edge to get rid of excess fabric that will be turned inside, up to the stitching line, but careful not to clip the actual stitches.
o5 Turn the petal right side out and press. Repeat steps o3-o5 with 3 other petals.
o6 Simply add the petals to the sleeve, lining up sides, allowing the petals to overlap. Stitch and press seam allowance up. Edgestitch [stitching very closely to the seam] on the top to keep the seam in place.
o7 Continue sewing sleeve as instructed.