Jif vs. Jiffy
For years, people have sworn that the popular peanut butter brand Jiffy is real, and they’re wrong. The actual name of the brand is Jif. But some say that the reason behind this Mandela Effect is the result of people confusing Jif with its competitor brand, Skippy. Somehow, their memories combined the two brands and created Jiffy. But who knows? Perhaps there is a brand called Jiffy in some parallel dimension out there.