In order to earn your wings in the Air Force you must either Attend the Air Force Academy or complete AFROTC at a University, or Attend OTS and serve on Active Duty, or Join the Air Force Reserves. This seems like an awful lot to go through just to look like a hot shot pilot at a Halloween costume party. So, someone was wise enough to offer up a replica Silver Aviator Pin like this.
The wings they award these individuals are silver, which is different than the gold wings awarded by the Marines, Navy and Coast Guard for their aviators. That makes this Silver Aviator Pin a must-have accessory for times when you want to look like a hot-shot Air Force pilot.