Here is something from awhile back– my first 3D-printed model… This, like many of my other models, this ship started with a dorsal concept drawing. I then painted the texture in Photoshop, modeled and rendered in Blender and sent a refined version off to Shapeways to have it printed. I was largely ignorant of the requirements for 3D-printing, so this model was not smoothed and lacked even the limited amount of detail I could have created with a displacement map.
Digital texture paint:
A few Renders:
Some images of the 3D printed version:
A short flyby clip: