Ekranoplan Casspian The Russian Tank-Ship-Plane. Not exactly a plane but still cool. It flies just over the water because of ground effect. So it can haul a heavy load very efficiently compared to getting it up to altitude. Or floating.
Over the rainbow. An Raptor pulling so many Gs, the low pressure air over the fuselage gets cold enough for the water to condense. The angle is just right for sunlight to make rainbow colors around the airplane