About five seconds after she saw this, Daisy asked for her own lounge dress. Of course. I have to say, she looks like an angel floating around in it.
Most fortunately, my king-size floral sheet was able to cough out one more small dress, and I even had leftover embroidered voile. Rather than do anything complicated, I just took a plain bodice that was loose enough to slip over the head, and instead of making the usual facings, I cut the facings out of my accent fabric and stitched them to the outside--a style variation good for grown-up dresses too!
I gathered two plain rectangles for the skirt, then sewed on as much gathered ruffle as I could muster. No zipper, no buttons, no ties.
Now we lounge together.