Before you even knew what it was called, you knew the U.S. Air Force Roundel. As a kid, you drew this symbol on the sides of fighter jets in countless notebook-pad dogfight scenes.
The current USAF Roundel dates to 1947 and is easily recognized by the red-white-and-blue bars that extend on either side of the central circle.
You could summon your childhood artistic skills and draw the Roundel onto your possessions. Or you could just buy an embroidered patch from Aeroplane Apparel Company and iron it on to your jacket or backpack. We suggest the latter.
3 1/8" Wide x 1 3/4" Tall Embroidered Patch with Iron On Backing.