1. Select your shirt. I think this skirt style works best with a solid color, but the choice is yours. I used the chest pockets in this design, so a shirt with chest pockets would be necessary to make it exactly the same, but you can mess around with it to make it work! :-)
5. Cut the back of the shirt as shown in this picture, cutting just below the yoke, then evenly splitting the remainder of the shirt.
6. Cut the shoulder seams from the yoke, and then split it in half. This will give you two sections of fabric. Straighten these out into rectangles as best as you can. The outside of the yoke may be lighter than the inside due to fading, so keep that in mind when deciding which side will face out on your skirt. I chose to put the slightly darker edge outside for the subtle effect it caused.
7. Sew the strips you cut from the yoke to the bottom edges of the pocket rectangles you cut, forming a band consisting of fabric strip-pocket-fabric strip-pocket.
9. Sew the band to the skirt. When you lift it up it will look like this. Weird. We'll fill in the gaps though, don't worry!
11. Fold down the pockets towards the outside of the skirt to get them out of the way. Pin the band to the skirt, right-sides together (except over the folded down pocket--see illustration). Sew the band to the top of the skirt once it's gathered to fit. Do not sew this band to the pockets. Skip over them. The band will go behind the pockets. You could cut down your strips and sew them to the edges of the pocket pieces, or a variety of other ways, but I found my method to be easier.
14. Get the button plackets you cut off the top halves of the shirt in step 4. Sew them to the raw seams at the top of where the buttons/buttonholes stop on your skirt. Measure these to ensure that the buttons and buttonholes will line up once your done! Then sew them up the remaining raw edge of the skirt.
It should look like this when you're done.
15. Button the skirt closed, then sew it shut up until wherever you want the fly to start. For me that's about 6"-ish from the top.
17. Sew the facing strip to the top of the skirt, right-sides together, all the way around, from one front opening of the skirt to the other.
18. Fold the facing into the skirt, press, then top stitch all the way around.
19. The finishing touches are to add extra buttons and buttonholes to the top if you are uncomfortable with the distance between the existing buttons, and since my skirt didn't end with a button at the very top, I added a hook and eye there.
Notice the pleats under the side pocket that I mentioned in step 8.