The Skeleton mod, created by Bryant Baker of Roswell, Georgia, was one of the many winners in a case-mod contest conducted back in 2006.
As an HVAC tech by trade, Baker decided to use materials from his day job and to mold everything using only a hammer. Most of what you see used in the mod is bronze-brazed, hammer-beaten copper, but the skeleton beast's skull is comprised of bronze-brazed, silver plating.
As for the skeleton's spine, that's all refrigerant piping he beat into shape, manually forming "bones." The "on" and "reset" switches are from defective setback thermostats.
"This is my attempt to show off the inside of a computer in a fashion that complements and supports these basic computer components aesthetically," Baker said. "It took about three weeks to assemble and every dime that I got for it came from a birthday gift from my wife--$600.00. This is my main and only computer that I use every day."
As for the specs, the skeleton rig has an Asus M2NPV-VM motherboard with an AMD 64 Athlon 3500+ processor. It also has 1 GB of DDR2-667 RAM and GeForce 6150 integrated graphics.
The rig's DVD-RW optical drive and 300 GB hard drive are suspended from the spine. When the DVD writer or hard drive powers up or goes into "seek" mode, the skull face actually jiggles. Nice.