Boggle from Parker Brothers (1972)
Released in 1972 by Parker Brothers, Boggle challenged players to unleash their inner wordsmiths in a race against time to score the most points.
A Bad Case of Worms from Mattel (1981)
In 1981, Mattel released A Bad Case of Worms, a novelty toy that appealed to children who enjoyed disgusting the people around them.

Atomic Energy Lab released by Gilbert in 1950 is widely considered one of the most dangerous toys ever released due to the presence of radioactive materials in the child's play kit.
A toy is seen both as a bauble and as an intellectual machine.
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— Brian Sutton-Smith