Pen Modding

Description
Pen modding is the creation of pen modifications, commonly shortened to pen mods, for the purpose of pen spinning. Pen mods are usually created with parts of writing utensils such as markers, pens, and mechanical pencils, but some are made with unorthodox parts, like silicon tubing, acrylic pipes, and metal ball bearings.

Links

 * Pen Modding Parts
 * List of Unmodded Pens
 * List of Pen Mods