Here's one I'd like to know the origin of. For some kind of acne medicine, and probably from the '60s. It featured singing pimples (black dots on the TV screen), and went something like:

First pimple: "I am an acne pimple, as lonely as can be"
Second pimple: "Don't cry, pimple, I'll keep you company."
Third pimple: "Hey fellow pimples, would three be a crowd?"
The Mormon Tabernacle choir of pimples: "All together, pimples, sing real loud." "Nyyaaaaahhhhhh."

I think it's revolting that I still remember this, but then it was a totally stupid commercial. Did it only show in Grand Rapids, Michigan, which I understand from my late mother was a famous test market for all kinds of marketing tactics (and the birthplace of coloring for margarine, and of Butterball turkeys)? Kathy