I cut off the sleeves and finished the raw edges of the armholes with scrap bias tape from my collection. That I used white bias tape instead of green lace or something else was determined partly by what I thought looked good, but primarily by what I had available in sufficient length.
After wearing the vest a few times and thinking about what to do with the sleeves, I cut off the sleeve cuffs and used them to make pockets. It was an experiment that I expected to result in quality time with the seam ripper, but it turned out that my machine was able to handle the thickness of the fabric and the cuffs make good pockets.
I actually added four pockets here because each cuff made a double pocket. I should have taken a picture of this part because I can't figure out how to explain it. Simply put, I folded the cuff to make one open patch pocket between the jacket and the cuff and one pocket with a flap on top of the open pocket. Uh, yeah. That didn't make any sense. Maybe you can figure it out by looking at the picture?
Since the cuff was so stiff, I added a snap on each end of the flap to keep it down. This adds security for whatever is in that pocket, but what prompted me to put in the snap fasteners immediately instead of in a few months was that the flaps sticking up looked untidy. I strongly dislike hand sewing, but I do want to look polished, so in the snaps went, quicker than most hand finishes on things I make.
I know on the dress form, those pockets are the only thing you can see, but when I wear this vest, they blend in more.
Now, if I can just keep the giant hook and eye closures inherent to this jacket from catching on my necklaces, scarves, and overcoats.