All of her props are awesome, the morphing supersheet or blanket would work. You might also try 3D Universe, DarkWhisper has a sheet with morphs to look like a cadaver. There's one more cadaver-type sheet prop floating around by Wycoff. Can't remember the URL now and a search in freestuff here didn't show it. It's called the "Reseaarch Lab Cadaver" or Sci-Fi body.