I recently did some light tests based on an idea I've been bouncing around for years with my old studio partner Bill Whitmire.
We saw this one setup in the book Light: Science and Magic: in which you place a black background behind a bottle (or subject) and then a wider soft source like a silk behind that.
Essentially the light wraps around the black and creates a thin rim around the subject.
I finally tested this recently with myself, but would love to do someone else. Keep in mind, I was by myself in the studio so getting the camera to trigger and be in focus using my Hasselblad was a little tricky.