Plastered Skulls! In the Middle East in the early Neolithic, one common burial practice involved digging up a previously-buried body, removing the skull, and using plaster over the skull itself to sculpt an image of the face of the deceased. Many seem to think these skulls were made as a form of ancestor-worship, but some disagree. Three such skulls were discovered a little over a year ago at Yiftah’el, in the lower Galilee. Here's a short article about the find. Here's a brief overview of prehistoric and early historic art, which features a really swell picture of a plastered skull.