3D Connection Space Navigator Hard Cover

This is a slightly modified version of the thing posted by Wigrid. I found that it was very tight and drew it to have a minor convex on the top, a little wider and shorter, and there is a very small curve in on the inside to help it "snap" into place. (Kinda works). Otherwise it's awesome. I will try to figure out a nice way to let more light through in the future. Let me know what you guys think!