The nose bone has been used for centuries by many different cultures. They are small and typically are fairly discreet. Nose bones are a beautiful way to show just a touch of color or the glitter of a gem in your nostril piercing. They are held in place by a little bulb at the end worn inside your nostril piercing. Nose bones can be made of stainless steel, titanium, acrylic, glass, or 14k gold.