The Hitachi Magic Wand. Corporate was so distressed to learn it was being used almost exclusively as a sex toy that they stopped production. Another firm approached them and asked/begged for Hitatchi to license rights to them - which they ultimately did.

WD-40: It's a water displacer not a lubricant.

HTML: It's a markup language for creating documents not a application development component.

The woman. They weren't designed to work outside of the home. They were intended for child birth and the running of households.

When you need a hammer. Everything is a hammer.

That test they were doing to see if people had COVID

Hydrogen Bomb (yet)

Communism. Just look at all the faggots these days.

Cotton swabs that say not to stick them in your ear.

Glue.

Keyboard Duster

The constitutional republic.

Play-Doh, the Slinky, bubble wrap... yeah I'm just reciting an AI summary for "inventions that have found other uses"