In 1975, an advertising executive named Gary Dahl sold over a million rocks and became a millionaire. Not gemstones. Not rare minerals. Plain, smooth rocks — the kind you could find on any beach. The Pet Rock was one of the most absurd commercial fads in American history, and it peaked during the Christmas season of 1975 in a blaze of consumer enthusiasm that lasted just six months.
The idea was born in a bar. Dahl was listening to his friends complain about their pets — the feeding, the walking, the vet bills, the mess. As the complaints piled up, Dahl landed on a joke: the perfect pet was a rock. Rocks don’t need to be fed, walked, bathed, or groomed. They don’t get sick. They don’t chew the furniture or disobey commands. They don’t die. For a group of tired pet owners venting over drinks, it was a funny thought. For Dahl, it became a business plan.
Dahl sourced his rocks from Rosarito Beach in Baja California, Mexico. They were smooth, round, and uniform — the kind of stone that fit perfectly in the palm of a hand. At one cent apiece, they were nearly free. He packed each one into a custom-designed cardboard box complete with straw bedding and punched-in air holes, as if the rock inside needed to breathe. The packaging alone sold the joke. Buyers knew exactly what they were getting, and they bought it anyway.
Dahl’s biggest expense was the die-cutting and manufacturing of the boxes. The straw was nearly free. For the first print run of the accompanying booklet, Dahl tacked the job onto a client’s printing order, then trimmed the copies himself. The result was a 32-page manual titled The Care and Training of Your Pet Rock, which cost him almost nothing to produce.
The manual was the real product. It was loaded with gags, puns, and straight-faced instructions for raising and caring for a rock. Dahl wrote it as if the stone were a living companion, and the deadpan tone made it funnier the more seriously it played along. One passage read: “Your PET ROCK will be a devoted friend and companion for many years to come. Rocks enjoy a rather long life span, so the two of you will never have to part — at least not on your PET ROCK’s account.” Another section continued: “Once you have transcended the awkward training stage, your rock will mature into a faithful, obedient, loving pet with but one purpose in life — to be at your side when you want it to and to go lie down when you don’t.”
The manual also included a training section that listed commands a Pet Rock could learn. Commands like “sit” and “stay” were described as effortless — for obvious reasons. “Roll over,” however, required some assistance from the trainer. There were no instructions for feeding or bathing, because none were needed. The manual acknowledged this without apology and moved on.
Dahl sold each Pet Rock for $3.95 — roughly $4. With production costs kept to a bare minimum, the profit margin on each unit was enormous. During the 1975 holiday season, sales exploded. Dahl moved more than a million units in six months and walked away a millionaire. Retailers couldn’t keep them in stock through Christmas. It was the kind of consumer frenzy that made people genuinely question what they were spending money on — and then buy one anyway as a gift.
The fad didn’t survive into the new year. By February 1976, sales had dropped sharply, and retailers began discounting unsold stock. The craze had burned bright and fast, the way novelty fads tend to. Within six months of its launch, the Pet Rock had gone from a bar joke to a million-dollar product and back to a punchline.
What made the Pet Rock work wasn’t the rock itself — it was the packaging and the manual. Dahl was an advertising man, and he understood that the product was really the idea. The box with air holes, the straw bedding, the straight-faced training guide: all of it framed a worthless stone as something worth owning. It was a piece of performance art disguised as a consumer product, and millions of Americans were happy to be in on the joke.
Dahl’s background in advertising gave him tools that most novelty inventors lacked. He knew how to write copy, how to present a product, and how to make something feel like an event. The Pet Rock wasn’t marketed as a toy or a gag gift — it was marketed as a pet, complete with the full emotional language of pet ownership. That commitment to the bit is what made it sell.
The economics of the Pet Rock are almost as remarkable as the concept itself. Rocks at one cent each, straw for nearly nothing, a booklet piggybacked onto an existing print job, and a cardboard box as the main cost — Dahl built a million-dollar business out of materials that totaled a few cents per unit. At $3.95 retail, the markup was staggering. It remains one of the most efficient profit machines in the history of novelty products.
The Pet Rock disappeared from shelves as quickly as it arrived, but it didn’t vanish entirely. On September 3, 2012, Pet Rocks became available again. Rosebud Entertainment holds the trademark rights to Pet Rock in the United States, keeping the brand alive decades after its original six-month run.
The 1975 holiday season gave Americans a lot of things to remember, but few were as strange as the sight of a smooth Mexican beach stone sitting in a straw-lined box under a Christmas tree. Parents gave them to children. Friends gave them to friends. The joke was the gift, and for a few weeks in December 1975, that was enough for more than a million people.
Real craze, the guy made cash.
Who remembers the invisible dog? I was floored the first time I saw one of those. It was just a dog leash with a stiff wire hidden inside, but I was surprised. Just floored. It was at Carowinds amusement park, where they were for sale in the gift shop.
My mom bought me one at Six Flags because I thought they were so cool. She was probably right. “No, you would play with it for 5 minutes and then get bored.”.
I will have mine. He must be dead by now.
I got some bad news for you, bud…
When I saw them, my father and I were in an office supply store. As a kid, I thought, “who would buy a rock in a box?” They marketed them as conversation starters for an office.
The packaging was more fun than I expected
Super cute. I’d contemplate parting with $4 for it!
I wonder what the original packaging in mint condition is worth today
$4 then is worth $20 of today’s money, not a fantastic ROI considering you had to keep it in mint condition
It is more valuable than an NFT. It can at least be used to break the window of a sinking vehicle.
In Los Gatos, California, he opened a bar with the money.
Carry Nations! Still open and popular. I grew up in Los Gatos and had my first legal drink there.
We were such suckers for those things
No one was a sucker; everyone knew what both of these things were. Maybe some people thought the mood ring knew their mood rather than just their finger temperature, but everyone knew the pet rock was a novelty gag.
A guy became a millionaire by selling a rock as a pet! Funny. Is there something similar today?
Sure is. NFTs. You might as well be selling stars or land deeds on the moon.
I didn’t realize “excelsior” had an alternative definition for “curled wood shavings”. The name comes from a brand name 150 years ago. Other than filing it away with other trivial knowledge, I don’t know what to do with that knowledge.
i got mine at the Hallmark Shop at the Belmont Plaza shopping center in Long Beach during their annual Midnight Madness sidewalk sale.
it was kind that they gave the rock a little bit of straw for their carrier.
How’s it doing these days?
had to put it down in 1977.
Impressive you held it for 2 years
Anybody else annoyed how the article keeps saying it came with “a straw,” like a countable drinking straw, instead of just “straw,” as in the uncountable bedding material?
Only me?
Fair enough.
You can definitely count bedding straw, within reason. But I agree with your main point
You can count strands of straw, sure, but straw as in the bedding material is an uncountable noun.
Friend of the family.
Dude had some conviction about his idea. Hardest part was finding anyone to give him $$ to help fund it. Insane how much they took off.
The creator made $15 million in 6 months. Unreal.
I still find mine oddly comforting. Maybe because I just like having something cold, heavy, and hand-sized to hold onto.
Though mine’s a “stray”, I found him myself instead of buying one. Maybe that makes him all the more special to me.
You’re better off with a loving rescue Rock than paying for an overbred Rock with a host of health issues from unscrupulous breeders.
Who really rescued who?
A real life Thicky Holden if I’ve ever seen one – the booklet was pretty funny, though!
Short lived?
I was still getting pet rocks in the early 80s. Maybe the trend just took longer to get to rural areas.
Pet rocks are still around today. In an official capacity even.
“Visits to the lapidary can be very expensive”
That man was a genius!
I have one of these in it’s original carrying case! Love it as a paperweight/conversation piece. Google the manual for them and give it a read. It’s actually quite entertaining
Mine was named Arthur Fonzarelli.
Mine was named Arthur Fonzarelli.
I was a poor kid and still managed to get my mom a pet rock at Xmas 75!
It was actually from the railroad tracks down the street.
I still have mine. Along with a clutch of Robot Eggs.
My grandfather was given one as a birthday gift from my aunts and uncles. He used it as a doorstop for 30 years.
It was brilliantly silly
His pet rock’s destruction is a key plot point in the fanfic Harry Potter and the Methods of Rationality – you’ll have to read to the end in order to find out the party responsible.
I like the ones that say “Please turn me over”, then when you do it says “Thank you”.
People who call it a ridiculous trend weren’t around then.
The instruction manual that came with the rock was very funny. People were buying a funny book, creatively packaged, with a rock attached.
This is what made them the perfect fad: the first time you saw them, they were hilarious, but the 20th time… not so much.
My dad still has his. He has yet to decide who will adopt it when he passes. (In many many many years) We all want to adopt the rock.
Well the manual just got a couple of lols out of me and the mini pet carrier with air holes in it is v cute, so it still does what it’s supposed to. Well done that guy.
The gift factor is great too. They’re basically saying “you’re terrible at raising an actual pet, but I wanted to give you a gift anyway”.
The fact that someone managed to sell literal rocks as pets and made a fortune doing it will never stop being hilarious. The packaging and the little training manual were half the joke. Honestly kind of genius marketing.
“You think the pet rock was a really great idea?”
“Sure it was! The guy made a million dollars.”
At least this was funny. Supreme bricks are ridiculous and expensive.
Um, wait…. You’re not referring to Fred are you? Cause he’s the longest lived pet I’ve got, he doesn’t need vet care or pet food and never makes messes.