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4. The Toy Train Plarail
Release Year: 1959
Creator: Tommy
Initial Cost: Variable
With its tiny locomotive marvels, Tomy's Plarail Toy Train chugged onto the play scene in 1959, enchanting kids.

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Plarail Toy Train on Twitter and @japantimes
These toy trains, which varied in price based on the kit, let kids design their own rail trips. Plarail became a timeless classic because of its unique combination of inventiveness and motion, leaving its mark on the recollections of generations who experienced the delights of small-scale train travel.
5. The Frisbee
Release Year: 1957
Manufacturer: Wham-O
* Original Cost: $1.00
When the Frisbee first took off in 1957, it quickly gained popularity. At just $1, this plastic flying disc turned idle play into an exciting outdoor activity. From parks to beaches, the Frisbee captured the essence of unfettered leisure and won over lovers' hearts.

©ORION PRODUCTION/Shutterstock Frisbee
Even after several decades, the Frisbee's iconic appearance and thrilling flight continue to make it a representation of outdoor fun.