I got the beautiful Drape Drape book for my last birthday in October from two great sewing friends, but only got around to make something recently.
It conceals pregnancy left overs and is very comfortable!
Basically it is constructed of two pieces. One is half of the back and the other is the front and half of the back.
The construction is very easy, but the tricky part was to cut the fabric without distorting the pattern every time I move it on the table. (because the piece is HUGE)