Only I could NOT decide what to do with it. Finally, I pulled out one of my new pattern purchases...Vogue 8669 and realized that it has somewhat in common with 1250. And the sleeveless top takes 1 yard, which was what I had available.
So I looked at the reviews for it; there aren't really very many yet. And I noticed that the cowl is quite high, as opposed to the 1250, which drapes very low. I really didn't care for the high edge of the cowl, so I decided to reverse what I did for 1250 and rotate the shoulder AWAY from the center front in order to elongate that top edge. And, while I was at it, I decided to add a deep self-facing to the front as well; 8669 calls for a 5/8" narrow hem.
Also, the drape is just gathered into the shoulders on the 8669 top; I converted the drape ease to pleats. This is not a great photo, but here's the original pattern and my modification side-by-side:
So I cut it out of the orange jersey and made it up. It was very, very quick:
I should've done a FBA. I thought about it, but decided to try it without first. Next time I'll add that. I'll also tweak the armholes a bit; they're too far forward at the bottom and flash lingerie if I'm not careful. This top will be worn as a bottom layer, though, so I should be ok.
I have another piece of orange fabric that I may get sewn up: but there's another 'oh, what pattern shall I use?' decision to make...