Basically here's how I did it:
1. Cut a strip of fabric, selvage to selvage, with the desired height. I used my daughter as a model. I, then, added approximately 2 inches to the measurement.
2. Sewed up the side selvage edges with a 1/2 inch seam. Press open. Since the ends are selvages, they don't need to be finished off. YEA!
3. Fold down the top of the skirt at 1/4 in and then again at just shy of 1 inch. Pressing down with each fold. This will be your elastic casing. Edge stitch at the bottom of this seam leaving a 2 inch gap for inserting the elastic.
4. Pin one end of the (3/4 in wide) elastic to one opening to keep it in place. Attach a safety pin to the other end and guide it through the casing. Once through, overlap ends of elastic by 1/2 inch and sew several lines of stitching to keep them together. Sew opening closed, being careful to not sew elastic.
5. Smooth elastic through casing. I like to sew a short line of stitching through the elastic at the seam line. This keeps the elastic from turning. I HATE when that happens!
6. Hem the skirt by folding up 1/2 inch, press, and then another 1/2 inch and press. Edge stitch along the bottom.
7. Then I appliquéd a simple bird shape. I used a light sewable iron-on adheseive to adhere the bird applique. Then used a narrow zig-zag stitch to permanently attach it to the skirt. Honestly, it took me 20-30 minutes TOPS. So easy, and so sweet.
Sorry I don't have any pictures of the process! I didn't think of it at the time, so typical of me.