I used to make ads, including one with a non-descript voiceover guy. He had a nice voice, so chatting after he read his lines, I asked him what else he’d done. After he mentioned a few, I asked him what was his favorite funny voice he’d ever done. He turned red and said “Well, I don’t usually admit that this was me…”
“Oh, go on, do the voice!”
“Okay…” And his thin, reedy voice got low and gruff:
Kibbles and Bits,
Kibbles and Bits,
I’m gonna get me some
Kibbles and Bits!
Bill Bailey, for Truman Motors in El Cajon.
“I tell you friends and neighbors…
Come get 'em.”
(with plinky banjo coda- BB winks at us on the last note.)
also
“Fill 'er up, Ding Ding
Fill 'er up, Ding Ding
'Cause you save with Douglas gas-o-line”
When it’s time to relax
One beer stands clear (beer after beer)
If you’ve got the time
We’ve got the beer
Miller beer
Nestlé $100,000 Bar. I have never been able to get the jingle out of my head.
Anyone who grew up in Kansas City can recall the telephone number of Standard Improvement Company:
Todd Rundgren included it in his vegetarian anthem Boogies (Hamburger Hell):
“I can bring home the bacon
(duh-duh-duh-duh-DUH!)
Fry it up in the pan
(duh-duh-duh-duh-DUH!)
And never never never let you forget you’re a man!
'Cuz I’m a wo-man!
Enjoli!”
Correcting myself. It was “I tell you neighbors…”
Minute Maid, Minute Maid,
the only 20
lemon
lemonade
We’re open night and day. We’re there when you need us, King Kwik!
Found this one, it is the second song here: King Kwik Commercial Montage (1970's) - YouTube
This is a local one, that came on while I was getting ready for school, circa 1969.
Frosty Morn Ham - Starring The Singing Pigs! - YouTube
From the comments…
“Another jingle from my Nashville childhood, it sticks in one’s brain like bubble gum. But the imagery revisited in adulthood is troubling. These cartoon piglets are celebrating being slaughtered, pumped with sugar and gassed with hickory smoke. Not only that, but they are parading around in ecstasy with a hind part of one of their comrades who has not only been butchered, sugar cured and hickory smoked, but also wrapped in a celebratory shroud to be sold and eaten with guileless relish. Tasty!” 
This one must have been from about 1974-1976:
I’ve been sweet, and I’ve been good
I’ve had a whole, full day of motherhood
But I’m gonna have an Aviance night!
Also, of similar vintage:
Schaefer is the one beer to have
when you’re having more than one.
Give it to Mikey! He’ll eat anything!
Page three, and I’m the first one in with
Call Roto-Rooter,
That’s the name
And away go troubles
Down the drain!
Also, even though the bank no longer exists (but evidently that’s not a disqualifier for this thread):
*From Fresno to San Diego
From the desert to the sea
Security Bank has offices wherever you may be
For money matters, here’s the key:
Let your financial partner be
Security – First National Bank*
The world looks mighty good to me, cause Tootsie Rolls are all I see…
…Whatever it is I think I see, becomes a Tootsie Roll to me.
If you lived in the Bay Area you got the same tune, but different words:
Pete Ellis Dodge!
1095 West El Camino Real
Sunnyvale!
New York area, early 70’s :
“You start to live when you learn to drive
Start to have fun, where you used to have none
Make your life complete
Take the Driver’s seat
Call Automobile Club of
Amer-ic-ca!”
“Crumbly Crunchies are the best,
look delicious on your vest!
Serve 'em to unwanted guests,
stuff the mattress with the rest!”
…okay, from a Warner Brothers cartoon, but it makes me laugh. So I owe you a real one. How about: “Mug-O-Lunch, Mug-O-Lunch, Mug-O-Lunch!”
If we’re doing fictional ones, how about:
"What goes down stairs
Alone or in pairs
Rolls over the neighbor’s dog?
It’s great for a snack
It fits on your back
It’s Log, Log, Log!
It’s Log!
It’s Log!
It’s big, it’s heavy it’s wood!
It’s Log!
It’s Log!
It’s better than bad–it’s good!"
or…
“If you like grass
If you like dirt
Try Sugar Sod Pops
It can’t hurt!”
(both from Ren and Stimpy)
Darn it, what was the one that went _____ _____, yum yum yum yum yum, ______ _____ yum yum…etc?
“Get the best, get Sealtest”
Except that that’s a parody of It’s Slinky, it’s Slinky, for fun it’s a wonderful toy. It’s Slinky, it’s Slinky, it’s fun for a girl or a boy.
(And it could just be the quality of the video, but that thing looks creepy going down the stairs. Kind of like The Blob.)
Anyway:
Muncha buncha muncha buncha muncha buncha muncha buncha Fritos go with lunch!
I think I hear that about every third time I see a bag of Fritos.
I know that. Doesn’t mean it doesn’t still count as a fictional ad jingle. 