Fine, a headshot of a male model cropped from a Playgirl centerfold and making bedroom eyes and visibly shirtless, because it was a shot from a spank mag, and then justified as an ongoing thing because it’s such a “perfect” image.

It was obscure and tame enough to last for a long time, but it was always creepy and its continued use as a quasi-official test pattern said more about the tech community than people would like to admit.