There are a multitude of man-made creations where the formal qualities of the objects surpass the functionality.  A perfect example of this is the American classic automobile, rarely driven yet highly prized. In my studio practice I refer to the absence of a certain substance or phenomenon, in this example, instruments that cannot be played. This object is devoid of, but alludes to sound. The blueprint of the guitar is a model, mimicking the resonating sound that travels through the vessel.  The musical instruments that I recreate in glass are removed from their initial purpose, leaving the viewer with an appreciation not only for the object, but the idea of the object itself.