Answer: Wallpaper Cleaner
Long before Play-Doh began its run as a decades-old iconic children's toy, it had a much more common life less colorful launch) as a cleanser. What would later become Play-Doh was originally a cleaning agent commissioned by the Kroger Grocery chain in the 1
At that time, most of the houses were charcoal-fired and this coal left a dingy coating on wallpaper. Cleaning wallpapers was a tricky business because you did not want to wet them and you should not disturb the surface with brushes or other aggressive techniques that could damage them. Go to Play-Doh's precursor, a simple clay-like blend of flour, water, salt, borax and mineral oil. They could take the clay and sand it on the wallpaper, peel it off, and he would remove all the carbon black without damaging the wallpaper. It was cheap, effective and sold well.
After World War II, however, the market for soot removal dried up as the country shifted to using natural gas to heat homes, and coal stove problems disappeared due to the problem of soot walls. Combine this with the introduction of vinyl-based wallpaper that can be easily cleaned with a damp cloth, and suddenly, very little special plaster was required to clean wallpaper.
In fact, the company was bankrupt to nephew The inventor discovered that the local kindergartens used the clay for Christmas decorations and other projects. In this accidental moment, everything came together: The sound was non-toxic, dries slowly, is easy to shape and fits perfectly with children. After a few adjustments to the recipe (notably to lower the salt content to keep the colors alive after drying), an aggressive marketing campaign in the 1950s, and a push into the international market in the 1960s, Play-Doh became one of the world's most famous children's toy on this page of LEGO blocks.