A cellphone goblin hoards their treasure. Technical devices of all nature were considered, at first, a worthless pursuit for goblinkind. But Lorthik, ever enterprising, saw the value and started a collection. This collection, grew to an immense size, and though many goblins didn’t understand it, fear of missing out led them to start collecting themselves. 

No goblin ever figured out how to use a phone. But they really liked the sounds they make and the light they provide. Some even used them as the primary motif of their décor.