Scratchbuilt: WH40K Armored Train
This classic Warhammer 40,000-style wargaming model is actually the work of the Games Workshop studio team, and was produced for an example battle in GW’s 2007 Apocalypse rulebook. Individual modelers, as far as I can tell, are not credited. There are more pictures on the GW website, and I find them especially interesting because they show the model both before and after painting.