Rubik's Cube
Hit U.S. toy shelves in 1980. Plenty of kids "solved" it by peeling the stickers.
Mike Gonzalez (TheCoffee) · CC BY-SA 3.0 · Wikimedia Commons1 curated pick
Hit U.S. toy shelves in 1980. Plenty of kids "solved" it by peeling the stickers.
Mike Gonzalez (TheCoffee) · CC BY-SA 3.0 · Wikimedia Commons