#15: Play-Doh
Originally a wallpaper cleaner in the 1950s, Play-Doh transformed into a beloved children’s toy by the decade’s end. Its clay-like formula allowed endless creative shapes, making it an instant hit among kids.
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Play-Doh was an affordable creativity tool at 49 cents a can, starting with just four colors, including the original white. Its popularity hasn’t waned, and it is now available in myriad colors and play set variations for endless fun.