All, I noticed a nice article to 3d Print the cosmic microwave background that you can hold in your hand. They show wrl and stl file and you'll need MM11 to use them I guess. Free download! So for those with MM11 go for it! With MM10.4 I can't get the nice colors ..
http://phys.org/news/2016-10-physicists-d-baby-universe.html