John Shore's Tuning Fork

Origin
John Shore was a trumpeter of the British court who had parts specifically written for him by composers George Frideric Handel and Henry Purcell. He was also the inventor of the tuning fork.

Effects
When tapped on an object and then rested against it, it conducts sound through the object. This usually causes an object to release a harmonious melody or a series of vibrations before naturally wearing out.