It is really cool to see how coloring your own 3D models is starting to take shape. We had a lot of requests here at Shapeways how to paint/color your own models and the tutorial featuring it is now available
here.
Have a look at the pictures below
Or have a look at these little rings colored with Ecoline, thanks to Peter Paul who really enjoyed himself getting all the colors he had on them 

Looking forward to more creative colorfull creations in our forums or elsewhere!
To share please upload nice pictures to your model details page or in our forum at the "it arrived" topic.