My computer has been down - AGAIN - I could read comments, but could not respond, so I hope those that asked for the pattern see this response.
I saw this on Pinterest, couldn't get the pattern, but what I did was as follows: 1) cut off back and sleeves leaving the side seams on the front, or you can leave a little bit of fabric beside the seams to turn under (see #4). 2) Cut in a straight line from the shoulder seam by the neck down to the side seam, skimming the sleeve seam - should be about an inch or so down the side seam. 3) Turned under and siz-zagged the cut from the neck to the side seam. 4) Overcast the rest of the seams in some manner to prevent raveling. 5) Decide how deep you want the pockets. I cut the sleeves off about 1/2" above the placket, turn under a seam allowance and press. 6) Pin or baste to shirt front. 7) I cut pieces of the left over fabric from the sleeves to make the ties, or you can use ribbon. You can go wild decorating these!
If you have questions, you can PM me, and I will try to help.
Have fun. Polly