In general, pilots are a pretty buttoned-up bunch. After all, their careers depend on a business-like, confident demeanor. But even among all those pressed slacks, white dress shirts, and oxford shoes, there are opportunities to express yourself.
Pins, patches, and keychains are subtle accessories that pack a lot of punch. They are noticeable enough to share your personality with the world but not so noticeable as to detract from your professional presentation.