The term 'strung thing' can be solved by the word 'PEARL', which is a 5 letter word. A PEARL is a hard, round object that is created within the soft tissue of a living shelled mollusk. Pearls are formed when an irritant such as a parasite or a piece of sand enters the mollusk's shell and the mollusk secretes a substance to cover the irritant. This secretion process is repeated many times, resulting in a PEARL. Pearls are often used in jewelry and have been highly valued for centuries.