Okay, so I was having trouble finding a Wonderbolt insignia that was "accurate" so I made my own! I tried to make it as Air Force-y as possible, I think it worked out well.
Produced from a combination of boredom and...boredom.
Oh, this is also the only pony shirt that I own. If you would like your own shirt (or sticker/zap), I came prepared! [link]