Okay, here's the code, version 3.5b. You probably don't have to use such 
a high max_trace_level; I left it in just in case there was some details 
that needed it. Note the normal block in there, it's what makes the 
curved, vine-like forms. Enjoy!

global_settings{
  ambient_light 0
  max_trace_level 175
}

camera{fisheye up y*.7 right x*.7
  location<0,0,-.01> look_at 0 angle 90
}

light_source{0,1}

#declare rd=15.915;
union{
  sphere{<-10,10,-10>,rd}
  sphere{<10,10,10>,rd}
  sphere{<10,-10,-10>,rd}
  sphere{<-10,-10,10>,rd}
  pigment{rgb -.3}
  finish{
   specular 1.1 roughness .03
   reflection{0,1.125 falloff .2}
   irid{.5 thickness .25}
  }
  rotate y*45 rotate<-35-125/6,0,0>
  normal{
   cylindrical 1
   scale 1.5
   poly_wave .25
   rotate x*100
  }
}
-- 
Samuel Benge

sbe### [at] caltelcom

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