Fallout 4 Key Chain Flattened Back(Vault-Tec, Vault 111)

All credit to the creator, as this is just a derivative.

Original: http://www.thingiverse.com/thing:1189959

I just wanted a version that was flat on the back and twice the size, but not twice the thickness. I've also exaggerated the depth of the are around the gear in the center to limit filament usage.