Alternatively the key could be a cube. And the pyramide is attached to the cube. The clue should be that it looks like the eye is hovering above the surface.
One could probably leave a gap between the cap and the pyramid to make it float while supported only in the middle, and have a hole in the cap which lets light seep through inbetween under the pyramid. Add a hole through the pyramid to the eye and it would glow a bit as well I suppose.
That would raise stability concerns at some point, wouldn't it? And takes the indirect light below the pyramide, though.
Either way, I see the idea dwells well with you.
My interest in Guy Fawkes is unbroken.
