I make beautiful pens using colorful acrylics or woods with highly-figured grain. All use quality refills available at most office supply stores. My olive wood pens are made from olive tree prunings imported from Jerusalem. They are popular as bar/bat mitzvah gifts and for other special occasions.
Or, consider an acrylic pen made in a favorite color, or in the colors of a school or sports team.
I make several styles ranging from slim, lightweight pens to heavier, thicker ones. All make good gifts for college grads or as Father’s Day or Mother’s Day presents.