I'm singing the Lite Brite tune that Tina mentioned. Gosh, I really loved my Lite Brite.
A few I remember:
Thanks for the gumball, Mickey!
'Mrs. Brady' singing "the chicken's got a certain...Wessonality!"
Silly Rabbit, Trix are for kids!
Weebles wobble but they don't fall down.
Choosy moms choose Jif. (I still think of that one every time I reach for the the jar of Jif. It must be firmly imbedded in my brain - yikes!)