These folks?Originally Posted by SPJ
http://www.mesozoicreptiles.com/
They do have some fabulous colours. Don't see any green ones though, but still worth ogling at. :-)
Edit: Found this in Mesozoic's links...a UK breeder who has some photographs taken on that blue aquariam gravel. Still didn't see that exact one, but you might poke around in here:
http://www.unusualalbinosnakes.com/index.htm