The mystery pooka jewelry was designed in germany and produced from the hardworking elves at Shapeways. They really do magic with their fantasic 3d printer machines in america and the netherlands.
The Pooka is a creature of Celtic folklore.
It is one of the myriad fairy folk, and, like many fairy folk, is both respected and feared by those who believe in it.
You might say Pookas do not exist and that is probably right...
but the idea of an invisible friend, like a 6-foot rabbit called Harvey, is not so bad!