Not the most flattering sweater in the world (and that's my vest underneath, not my belly), as I've said, but it's comfy and warm, and I'm in love with the collar. I think this may become a standard collar treatment in my repertoire. Basically pick up stitches around the neckline from one shoulder but don't join. Knit in what ever stitch until it brushes your chin, then sew down the open flaps and attach a decorative button. Easy.
The advantage is that it'll keep my neck warm without adding the bulk of a full turtleneck.
Also, here's a picture of the fluffy scarf.