(TrendHunter.com) The ‘Piston Pens' are an automotive-inspired desktop writing utensil set that will provide avid engine aficionados with a way to incorporate a touch of car design into their working or... (TrendHunter.com) The ‘Piston Pens' are an automotive-inspired desktop writing utensil set that will provide avid engine aficionados with a way to incorporate a touch of car design into their working or...