To me the three biggest Mandela Effects are Berenstein Bears, Fruit of the Loom cornucopia on the logo, and "Objects In The Rear View Mirror May Appear Closer Than They Are".

Berenstein Bears is obviously now BerenSTAIN Bears, but I have pretty strong memory of seeing BerenSTEIN as a kid.

Fruit of the Loom definitely had a cornucopia on the logo, I remember staring at the logo as a kid wondering what that horn shaped basket thing is.

Objects in the rear view - I clearly remember sitting passenger seat as a kid and reading the side mirror saying "objects in the mirror MAY appear closer than they are"(Which the band Meatloaf had a hit song titled as) and having this thought "what do they mean MAY appear? why can't they figure a mirror out?"... Now apparently mirrors never said "may appear", they've always said "Objects In The Mirror Are Closer Than They Appear"

I've studied this heavily quite a few years back and I think the topic offers evidence that our consciousness(to include our personal memories) is indeed separate from this reality we live in. It also lends credence to to the idea that this is some type of simulated reality(reality learning lab as one would say lol), where things can be re-written.