This is a classic toy that has been around for decades. It is a plastic sphere with a window on one side, containing a mysterious liquid and a die with 20 sides. When a person asks a question, they shake the ball and a random answer appears in the window. The answers range
From Wikipedia
The Magic 8 Ball is a plastic sphere, made to look like an oversized eight ball, that is used for fortune-telling or seeking advice. It was invented in 1946 by Albert C. Carter and Abe Bookman and is manufactured by Mattel. The user asks a yes–no question to the ball, then turns it over to reveal an answer that floats up into a window.