Kiddish Enthusiasm, Late 60's/Early 70's

Please rec. more in similar vain, if such exists!:

Archies - Everything's Archie, '69
Banana Splits - We're the Banana Splits, '68
Cowsills - Captain Sad And His Ship of Fools, '68
Free Design - Sing for Very Important People, '70
Harry Nilsson - The Point!, '71

The Beatles - Yellow Submarine (song '66, film '68 I believe)!

(There's some interesting overlap here between just trying to tap into the kid market, and rockers reaching an age when they actually had kids, or nieces and nephews, for whom they wanted to sing songs - "The Point" and things like "Good Night" by the Beatles seem to belong to the latter...)