Shapeways has brought in a new feature for the designers to trial 3d printing and colouring. The 3d printing hasn't changed but the colouring is new and being trialled.
For this design I can now select any colour as well as raise a logo and colour it differently. I would of done a car logo but the tail light is my own design and not like a known car.
So will be doing 2 trial prints where the outer colour is similar to the speaker panel, aqua and a light pink. I have added a "custom" logo in a old school car emblem font given it a silver / grey colour and then coloured the inside all black but with the logo white on the inside in the hope that the logo will glow.