Tutankhamen's Bike Helmet

Still on a TopMod bender, sorry. Hopefully will work it out of my system soon enough.

This one is the top half of an octahedron, or a square-base pyramid, given an organic skeleton look. I was going for something simpler and beefier in an effort to come closer to something reasonable for a MakerBot. Doesn't really respect the 45 degree rule 100%, tho.