Circle Square Cube Pyramid Cylinder Oval

Necklaces of Brass and Geometry, some of which are in my shop and others that will be there soon!

This is the Medusa Necklace named after the Italian word for Jelly fish because it looks like a metallic geometric Jellyfish, maybe a robotic one. It's in my shop now.

This is the Solid Brass Cube Necklace which is currently in my shop. 

These three necklaces will be coming to my shop soon. I need names for them, especially for the second one, I haven't even got any ideas for that. Do you all?