Steampunk Donut - Earrings in Cast Metals

This is a pair of earrings with a design that combines modern, steampunk, and science.  The science part comes from it resembling a molecular model.   It also resembles a donut.  The little knobs make it steam-punky.  Each earring is composed of four connected hexagons positioned at three different levels.   Someone told me that it looks like a cube in 4 dimensions projected onto 3 dimensions.  I'm not sure what that means, but it sounds good.

Ear wires are not included.