Some of you may have made similar cameras: they’re not fancy, but they do what they’re designed to do and capture images. Since the requirement is a dark box, they can be made from just about anything.
Ryan H. (eldeeem) proved that by making a pinhole camera from a 2×2 brick. No joke.
That small image the minifig is holding was taken by that very same pinhole camera.
It’s not a conventional creation we typically feature. It’s brilliant, creative, and definitely pushes LEGO as an art form.