I took and modified  N.M.'s idea for a wireframe off of the c.g.r.r. newsgroup,   took and modified a fire texture I found somewhere on this newsgroup.  I applied it to my metalman.inc and viola!  Some kind of metaphor for the human spirit, huh?

One of the key changes was changing the density from spherical to bozo.

object {body2
texture
  { pigment
    { gradient x color_map
      { [0 rgb <.1,.1,.5>]
        [.25 rgbt <1,1,1,1>]
        [.89 rgbt <1,1,1,1>]
        [1 rgb <.1,.1,.5>]
      }
      scale 0.15
    }
 }
  texture
  { pigment
    { gradient y color_map
      { [0 rgb <.1,.1,.5>]
        [.25 rgbt <1,1,1,1>]
        [.89 rgbt <1,1,1,1>]
        [1 rgb <.1,.1,.5>]
      }
      scale 0.15
    }
      }

interior {
    media {
      emission rgb 1 //<0.75,0.75,0.75>
      intervals 30
      samples 10, 10
      confidence 0.9999
      variance 1/1000
      density {
       //spherical
       bozo
       scallop_wave
        turbulence 0.9
        color_map {
          [0.0 color rgb <0, 0, 0>] //You need this
          [0.25 color rgb <1, 0., 0>]
          [0.5 color rgb <1, 1, 0>]
          [0.75 color rgb <1, 0, 0>]
          [1.0 color rgb <0, 0, 0>]// you need this
        }
        scale 0.5 //you need this
      }
    }
  }
  hollow
}