Nibs divided into three 'tines' are commonly known as music nibs. Nibs divided into three "tines" are commonly known as music nibs. The beans are then roasted and separated from their hulls to produce cocoa nibs. Fountain pen nibs are frequently tipped with ruthenium alloy. The pens are made from ebonite with gold or silver plated nibs. For drawing, he used calligraphy inks and pen nibs. Calligraphy pens write with nibs that may be flat, round, or pointed. Early Waterman pens were made of hard rubber and were equipped with 14K gold nibs. Items such as Gold Nibs, Gold Pen, Gold watches etc. Many vintage pens with decades-old nibs can still be used today. Examples of this are oblique, reverse oblique, stub, italic and 360-degree nibs. Examples of this are double broad, music, oblique, reverse oblique, stub, italic, and 360-degree nibs. The resulting pieces of beans are called nibs. Some models have interchangeable nibs to allow for different effects. Titanium is a less common metal used for making nibs.