http://www.ebay.com/itm/Dax-Riggs-Deadboy-the-Elephantmen-demo-Cd-Acid-Bath-/281523599922?pt=Music_CDs&hash=item418c1d3a32
The original first Deadboy demo. The seller also has another (later) Deadboy demo for sale as well as the Song Mechanism EP.
I have all three, so I won't be bidding.