The non-stick coating called Teflon, or polytetrafluoroethylene, was accidentally invented by Roy Plunkett while trying to create a new refrigerant. – WTF Fun Facts
Source: https://www.popsci.com/geckos-cant-stick-to-teflon/
Ruth Wakefield was the original creator of the chocolate-chip cookie. She sold the recipe for the Toll House Chocolate Crunch Cookie to Nestlé for one dollar and a lifetime supply of chocolate. – WTF Fun Facts
Source: https://www.thevintagenews.com/2017/06/25/the-inventor-of-the-chocolate-chip-cookie-sold-her-recipe-to-nestle-for-a-lifetime-supply-of-chocolate/