Almost the entire Electric Light Orchestra music catalog sounds like a “I am the walrus” spin-off .. I believe Jeff Lynne pretty much agreed with that
McCartney wrote and recorded a demo ( all by himself) of Bad fingers first hit
“Come and get it”
I use to think the song “red rubber ball” was a beatle song with Ringo with lead vocals but it was by the The Cyrkle
And John Lennon was the one who suggested they change their name from Circle to Cyrcle.
Ironically, I saw the Cyrkle (prounced "Circle") song that song as an opening act for The Beatles back in 1966.
Jeff Lynne help produce the Beatles anthology album back in 1995.
I had a 45 of Red Rubber Ball when I was ~6. I remember playing it on the console Grundig stereo record player/radio my parents brought back from Germany. And thinking about it, it might not have been stereo.