Here’s some mdf scenery for games like 40k that I won on an eBay auction. It’s another from Wargames Tournaments.
I got 48 wall pieces, that pair up in twos (if that makes sense) into 12 pieces of ruined wall terrain. Great, cheap hardcover for your sci-fi armies. You can paint them up but the detail may be lost. Just glue the two halves together then use the triangular piece to make the corner joint. Done!
The pieces all slot together with no bother and look quite good as they. Not bad for less than UK GBP 9.00 including postage!
I added the nearest model (a GW High Elves spearman) for an idea of scale.