Before Grin Big! there was PENMEN. PENMEN sold it's first t-shirts in 1990 with the positive purpose of spreading optimism and positive vibes. Take a grin look at our PENMEN Apparel Tees. The Pen is Mightier than the Sword and the Power of Optimism will keep you moving forward. Whether you are a scooter rider, vespa lover, or jeep driver we've got your t-shirt with classic screen printing in Colorado.