The Magic 8 Ball
Without a question that the inventors of this thing would have needed psychic power to predict the enormous amount of success of their invention.
It was a very popular toy among kids back in the days when Wii and tablets haven’t been invented yet and if you haven’t been living under a rock, you or your friends probably had one.
The first model appeared in 1940 and kids used it for seeking advices and fortune telling.
It was an instant success and brought the company millions of dollars.
