This thing is a derivative of:
The "IrisBoxRing" J_Hodgie's Iris Box v2 http://www.thingiverse.com/thing:5589
and
Stargate by Glitch
The Stargate was almost the perfect size. I created a cylinder to strip off the little bumps on the Iris Box Ring and combined it with the Stargate, scaled up 2%.
Unfortunately, while OpenSCAD rendered this thing (as per the picture), I couldn't get it to actually generate the resulting STL file. Maybe you can?
The author marked this model as their own original creation. Imported from Thingiverse.