I’ve had my crystal ball now for about twenty-five years or so and have never been able to read with it. Very occasionally ideas spark while I gaze inside (I guess that’s part of what ‘reading’ means when scrying), but I’ve never seen a story play out in the mist like you see in cartoons.
But that doesn’t really matter. I like my crystal ball anyway. It’s round, shiny, and reflective, and feels like something a Tarot reader should have. Of course it has nothing to do with Tarot at all, just a lovely part of the expected decor.