A previously-posted shot by M_Six of a Douglas AD-5 Skyraider warbird painted up in the colors of 1950s Marine Attack Squadron 332 'Polka Dots.'
I can just picture the all-pilots meeting where someone (the CO?) suggested they call themselves the Polka Dots. "You mean alongside the Vampires and the Red Wolves and the Death's Avengers, we will be the Polka Dots?!?"