Similer to the chicken egg and baby one: A guy is charging from the beach into the surf carrying a surfboard over his head, passing by a Creature-from-the-Black-Lagoon-ish thing charging from the surf onto the beach carrying a child’s wagon over its head.
A couple of stereotypical gangster tough guys (large jowly faces, fedoras, dark glasses, trenchcoats) are looking up through binoculars at a little sparrow or chickadee or something on a tree branch. Caption: “Boid watching.”
My absolute favorite:
A group of Christian soldiers in a choreographed skating move: “The Ice Crusades” 
Two spiders spin a web across the bottom of a playground slide.
“if we pull this off, we’ll eat like kings!”
Two guys in pith helmets, seen from the chest up. Looming up right behind them is the head of a huge buffalo. One guy is saying to the other “Buffalo breath? Buffalo breath?! Need I remind you of your incessant little grunting noises?!”
A crazed street preacher type is standing on a street corner box, ranting about “Vampires! The vampires are everywhere!!” Some guys are walking by lugging a sheet of window glass, and he is the only person on the street reflected in it.
Set in a butcher shop; there’s a kid sweeping, the butcher, and a hulking lumpy guy in trench coat and broad brimmed hat. And the butcher is saying “Well, I’d never actually thought about it. But I think I’d let the kid go for three, four bucks a pound.”
A bunch of guys in lab coats are looking out a picture window at a bunch of goofy looking people who are looking in and making faces. One of the scientists is saying “Yes, they’re all fools gentlemen. But the question remains; what kind of fools are they?”
i always liked this one: scientist looking into a microscope at some amoebas or something titled lowest form of life: one of the amoebas is tugging on another’s shirt while saying “shirts on fire! now its out!”
another favorite is titled “gods kitchen” i believe, he’s taking the planet earth out of the oven and says to himself “something tells me this thing is only half baked”
Two airline pilots are in the cockpit. One turns and says, “say… what’s a mountain goat doing way up here in a cloud bank”.
rofl
Satan stands in his office surveying his dominion as his wife sits at the table. And he asks his wife, “Edith … am I a ‘butthead’?”
Two cavemen standing outside the entrance to their cave, one has his hand against a massive wall of ice and he says, “Wall of ice closer today, Thag?”
A dead deer strapped to the roof of a pickup truck, which contains two dead hunters. The truck is strapped to the hood of a UFO and two aliens inside are bearing huge grins and high-5’ing each other as they whiz through outer space.
A huge, broken jar labeled “Humans” lay in a field. We see a handful of naked humans fleeing the scene and God’s sarcastic voice comes from the clouds: “Oh, that’s just great.”
A couple of single celled organisms are sitting on a couch. Next to them is a projector, showing on the screen is a single celled organism undergoing division.
Amoeba porn.
Best part are the black bars obscuring the identity of the participants.
A bunch of damned souls in hell; two are looking at a dog. One is saying “I dunno; I always figured he was just a bad dog.”
A cow driving a truck labeled “Al’s Meats” past a field with cows. The caption is “And the other cows never spoke to Bessie again.”
Two bears looking at a gun. One is saying " ‘Thunderstick’? You actually said, ‘thunderstick’? That my friend is a Winchester 30.06."
Two bears standing over a hunter they’ve apparently just clobbered. One bear is rifling through the guy’s wallet.
A hulking figure wearing a trench coat and hat is entering a shop labeled “Unnatural Foods”
A bowl of potato salad in the fridge is holding up the other food with a gun.
CAPTION: “When potato salad goes bad.”
Surprised the Doper of the Same Name hasn’t appeared in this thread yet.
Of course like they’ll be able to say all that after noticing the goat before they become smears on the mountainside.
You just know that many of these career-specific ones became automatic tape-ups/tack-ups/et al. on refrigerators/bulletin boards/office cubbies across the country.
My fave, like much of Larson’s work (and unlike that of most of his imitators), works on several levels at once. Shipwreck survivor washes up on an island, and is greeted by a guy and his ventriloquist dummy:
“Hello friend, I am Ernie, and this is my pal Gus. Welcome to our island.”
[Dummy]: “Watch out mister, Ernie’s mad! He’ll eat you first chance he gets.”
“Ha ha, he’s only joking around, pay no attention.”
“No joke! He ate that German guy last year.”
“Shut up Gus! Now what’s your name, friend?”
“He’s maaaad! Mad, I tell you!”
Kind of like a Liar’s Paradox of a sort. If the “dummy” (Ernie) is telling the truth, then why would Ernie (who presumably does in fact want to “butter up” his new feast on two legs so he’ll let down his guard and become easy meat) have him say that? If the dummy is lying, then again what’s the point? You either conclude that Ernie is in fact bonkers (MPD), or that the dummy is actually sentient-but then why hasn’t Ernie chopped him into kindling so Gus won’t blow his cover? You could round and round on this about another dozen times if you wanted.
This thread reminds me, I can actually afford the whole collection now.
A puffer fish, all puffed.
A rattler, shaking it’s tail.
A cat, hissing.
A man, wearing a pot like a hat, rubber duckie floatie and holding a rifle.
caption: How nature says “don’t touch”
“Yes, gentlemen, they’re fools. But what KIND of fools are they?”
and
“Cat Fud.” (Oh please, oh please, oh please…)
My favorite is similar:
The scene is the corner of a living room. There are some bookshelves under a window, and a cuckoo clock on the wall. The clock is ‘chiming’ but instead of a cuckoo bird springing out of the clock, there is a small globe of the Earth on the end of the spring.
The caption reads “In God’s den.”
What’s even better is that I have that panel on a page from a Far Side calendar and it also includes this text:
1930 - Pluto, the planet farthest from the sun, is discovered by the Lowell Observatory staff in Flagstaff, Arizona. (Asked how they were able to spot an object so far away, the head of the observatory replied, “We squinted.”)
Trouble brewing
In our house everyone gets served “fud”. 
“Mr. Jones, it’s a fax from your dog. I think it’s your cat.”
Bears in a cave… one with two human skulls using them like puppets. “Hey, think there are any bears in this cave”… “I don’t know… lets find out.”
