Set with the Akzidenz Grotesk font, which Adobe claims a copyright upon - and probably some design patents - so I'll likely make another version with a free font later. I just picked something that looks nice for now.
If you're interested as to how I made it, I pretty much used some basic shapes and Blender's boolean modifier: http://wiki.blender.org/index.php/Doc:2.5/Manual/Modifiers/Mesh/Booleans
Updated the source files so that the six isn't backwards.
This is a bit of a tricky print. I suggest you turn off "Infill in Direction of Bridge" if you are using skeinforge, or use any other settings you'd normally use for organic meshes. Print a bit larger if you have a fat (.5mm) nozzle like I do.
If you're worried about fairness, open it up in your favorite 3d editor, and make a few copies at different rotations so that the you have several with the infill oriented differently. You could then procede to do careful experimentatin to see which orientation works best, but really, just print off like six different ones and keep them all together.
Imho, seeking fair dice is a psuedo science.