The top of a tank top and the bottom of a large men's shirt - a one of a kind dress! Perfect idea for yardsales where all the nice men's dress shirts are XXL. Great for maternity dress too. Id use it for a nightgown!
i think you could make this with tunisian. when it gets the the split, you could keep working half the stitches until both halves are long enough and then start stitching across the entire piece again at the other end.