Next to the desk where I do all my writing and painting is a large bookcase. This is where I keep most of my favourite books, my gaming books, and my own works, so that they are all within easy reach while I work. However, I keep one shelf open for one of my current painting projects. This both beautifies the room and also encourages me to continue with the given project. Right now, the shelf contains my Dropship Down stuff.
Most recently added to the shelf is a second construction vehicle from the Games Workshop Galvanic Servohauler set. It's a really great set and can mostly be painted in a generic way if you don't want to use it for the 'grimdark universe'.
I painted this smaller one to more or less match the first one, with a dirty, weather-beaten look. I try not to spend too long on such things as they are basically just terrain and most of the detail is wasted when viewed at 'playing distance'. Also, I don't want the terrain to outshine, or distract from, the miniatures during play.