Bullets Made From Gold, Diamonds, Ivory
Jeweler David Roux-Fouillet designed an air gun rig and a range of specially pellets that are fired into rings, earrings or pendant made of platinum or 9ct gold.
The pellets are made up of plastic wadding, a solid disc of metal, following by a diamond or some other material, followed by a soft gold alloy.
The gold in front is them squashed between the ring/earring/pendant and the diamond (or ivory, gem, horn etc.), creating the setting.
This high speed video shows how the system works …