So I cut it into two long rectangles and started workin' my stitchy magic.
And after a few hems and a couple of seams, I had a jacket :) I even got to work on it at a craft night at a new friend's house. Unfortunately, I don't have any finished object pics yet, because, well, it's not quite finished. But this gives you an idea (from the back, before the side seams):
It's very... solid colored. So it needs some embellishment, and I think I'm going to do some sashiko embroidery if I can find a border pattern I like. And if I can decide on a thread color. You know. Little things like that.
Ironically, I ended up not wearing it to the wedding with the intended dress. Turns out that I don't like the way the shape of it works with the dress. Oh well. I managed to find a perfect green pashmina really cheap at the mall, and it gives me more time to embellish the jacket ;)