A low-cost, high-reward item, pens range in price from mere pennies to a few dollars. Writing instruments are tied with bags for the lowest cost-per-impression of any promotional product in the U.S. They also come in second (to apparel) as the most popular promotional items worldwide. Why? Everyone needs and uses pens on a daily basis, and people tend to collect different pens, which come in a seemingly unlimited range of shapes, colors and sizes.