In 1947, Life magazine asked the some of the most well known cartoonists and comic strip artists to attempt to draw their title characters - faces and lines they'd recreated for years - with a blindfold on.
The results are pretty fascinating, and surprisingly consistent among the artists.
See, the lines are marks are right on, no doubt the product of countless practice. But they're just not arranged in quite the same way, creating somewhat of a Cubist affect, or a Linklater-alike rotoscoped floating feature thing.
Interesting, right? See them all at Boing Boing: Famous cartoonists draw with their eyes closed