Depending on what plastic they used you might be able to.

That crank was 3D printed. It is becoming the new standard in prototyping, and soon the new standard in production. You can read that many of the other products they are working on are also being 3D printed.

Check out what one can do with a CAD program at home.
All the items on this site are created using 3D printing by designers/craft people/ inventors etc...
http://www.shapeways.com/

And yes, it is rather plain looking, but that has been the design language that Phil Wood and Co. has been speaking for the last 40 years. Simple, effective and strong. Pretty isn't really part of that equation.

Perhaps they can polish the raised feature on the arm, but at this point this is all speculation.