I am now traveling through Northern Europe, but I have been told that we have received at home the 3D printed pieces for the HP41C. It is the side cover, and the 4 port covers. I have been told that the quality is excellent - let’s see it tomorrow.
I have ordered the standard textured black color. Here you can see a picture.
However, all kind of colors and textures are available. You can see here a curious yellow finish in this page, and here you have the white option too!: