A customer of mine from the St. Louis area asked me to make a sign similar to the NATCA signs but for his friend who is retiring from the the Air Force. Cut from 1/8" steel, polished, painted, clear coated and finally LEDs to backlight the Air Force Logo.
Here are a couple of NATCA signs that I donated to NATCA's charitable foundation auction at the Communication For Safety 2018 event. They seem to have become pretty popular. I'm glad that my work can help raise money for various charities.