This unusual necklace has been printed with a 3d printer using a wood fibre plant based polymer filament.
 
It is of the MDMA molecule, a psychoactive drug that was developed by a pharmaceutical company in 1912. It is illegal in most countries of the world. But, this necklace doesnt break any laws and its posession won't get you a prison sentence.
 
Supplied on a silver plated chain with lobster clasp.