I've now finished the centerpiece of my Warhammer 40,000 Necron Army: an internally illuminated Monolith:
This is what it looks like when you turn the lights down:
To build it, I pretty much followed the instructions in this article on Librarium Online. The only difference was my use of small pieces of paper, which I glued behind the green plastic rods to make the light more diffuse. Here's what they look like from the inside:
You can also see the big wads of Green Stuff I used to plug the holes around the Gauss turrets in each corner. Here's a couple of pictures of the lighting rig:
I bought the CCFL system from Scan.co.uk: the components cost me less than a tenner, which is pretty amazing. I am thinking about buying some more to use in some future terrain pieces.
After being sprayed black, I painted the outside of the Monolith in Tin Bitz using some home-made foam brushes of various shapes and sizes:
I then drybrushed Brazen Brass over the Tin Bitz using a large drybrush, and then picked out the edges in Shining Gold. I used Devlan Mud to add some weathering and dirt, especially to the parts that I'd given a coat of Boltgun Metal to add some contrast.
Side and rear shots: