Well, i came across an instructable on how to make a star wars prop cheap and easy that would with just a little tweak make a great necron terrain piece. I did post it to the all terrain thread and am not sure necron players would see it there. I was kinda hoping for a terrain forum so i could title it a necron terrain piece, cheap and easy.
If you're curious, here. https://www.instructables.com/DIY-Starwars-Sith-Wayfinder/
But if experience shows a terrain forum would be a waste, ok. I am kinda surprised at that, i'd have thought guides to making good terrain cheap and easy would be popular.