Takes a bit of thought but quite easy if you've done some machine sewing before BUT remember only sew one square gusset on the liner so can turn it inside out through the unsewn gusset (corner) then hand stitch the second one inside.
Tied Drape-Top: Use a no-fray fabric, like modal, no-fray chiffon or polar fleece for a winter version, since is a no sew no fusing, and very quick top to make. Cut a rectangle twice as long as you want your top to be, and elbow to elbow wide. Then fold to find the center (use chalk to mark it, i used a pointed line in the drawing). Cut the neck hole on one side of the pointed line (a triangle or half a circle would work fine, you can tweak it later) and put it on. Mark waist...: