Did you know that Airbnb started as a business venture renting out air mattresses on the floor? Now it’s worth billions. One of the earliest business ventures in the U.S. was Benjamin Franklin’s printing business—he used the profits to fund libraries and invent bifocals. FedEx founder Fred Smith once gambled \$5,000 in Las Vegas to keep his business venture alive—he won enough to pay a fuel bill and save the company.

Colonel Sanders launched his fried chicken business venture in his 60s after years of rejection—he ended up building a global brand. Nike's first business venture was selling shoes from the trunk of a car. Today, it’s one of the world’s biggest athletic brands. The fidget spinner craze was based on a toy idea from the 90s, which only took off decades later as a spontaneous business venture.

Spanx founder Sara Blakely started her billion-dollar business venture with just \$5,000 and no business experience. YouTube was originally a dating site—its pivot to video sharing became one of the most successful business ventures ever. The Velcro invention was inspired by burrs stuck on a dog’s fur—later turned into a business venture used in fashion, space suits, and more.

Some of the first vending machines in ancient Greece dispensed holy water, showing that business ventures are as old as civilization. LEGO almost went bankrupt in the early 2000s before redesigning its strategy into a wildly successful business venture. In Japan, there’s a business venture that rents out actors to play family members, friends, or even co-workers.

Elon Musk used money from selling PayPal to start a business venture in electric cars—Tesla. The idea for Starbucks came after a trip to Italy, where the founder saw people relaxing in cafés and turned it into a coffee empire. Harley-Davidson started in a backyard shed with two friends trying to build a motorbike—it became a legendary business venture.

Dropbox began as a simple idea after the founder kept forgetting his USB drives. The demo video kickstarted a huge business venture. A single tweet from Oprah helped boost a small bakery into a million-dollar business venture overnight. The founder of GoPro built the first prototype from old camera parts and a wrist strap—now it’s a household name.

Instagram was originally a location-based check-in app—pivoting it to photo sharing turned it into a billion-dollar success. IKEA was started by a 17-year-old selling matches and pens—he turned that hustle into a flat-pack furniture giant. Bubble wrap was first invented as wallpaper—only after it failed did it find a new life as a packaging business venture.

Twitter began as a side project during a brainstorming session for a podcasting platform—an accidental business venture that went global. Howard Schultz had to pitch Starbucks over 200 times before investors supported his café-style business venture. An Alaskan company rents out reindeer for holiday events—it’s a surprisingly profitable seasonal business venture.

Spanx didn’t advertise on TV for years. Instead, the founder sent samples to influencers and it grew through word of mouth. Red Bull was inspired by a Thai energy drink. The co-founder Westernized the recipe and built a global marketing machine. Etsy started as a platform for crafters frustrated with eBay—it became a booming business venture for handmade goods.

One business venture in Finland sells silence—luxury retreats with no Wi-Fi, no distractions, just nature and peace. Pinterest was originally a shopping app that failed, but the founder noticed people loved “pinning” and pivoted the entire business. The person behind Crocs never imagined the foam clogs would be a fashion statement, but the quirky business venture worked.

An Icelandic company sells air in cans to tourists. It began as a joke and turned into a real business venture. The inventor of Post-it Notes came up with the sticky glue by accident—but it took years to find a use for it. One California company sells bottled ocean water for people missing the sea—yep, it's an actual business.

The Slanket, a wearable blanket, was invented by a college student trying to stay warm while gaming. One Japanese business rents screaming rooms—soundproof places for people to vent stress. A Canadian startup collects and sells rare snowballs online, shipped frozen for novelty gifts.

The Roomba started from military robot tech—then it was repurposed into a business venture that cleans floors. A man in New York turned his daily subway compliments into a business—offering pep talks via voicemail. There’s a business in South Korea where people pay to smash things in a “rage room” to blow off steam.

Tesla’s success helped revive interest in electric cars, which were actually more common than gas-powered ones in the early 1900s. LEGO was nearly sold off during a financial crisis but instead reinvented itself with video games and movies. A dog bakery in San Francisco started as a side gig and became a chain of gourmet pet treat stores.

The founder of Bumble created the app after leaving Tinder—and turned it into a powerful business venture focused on women first. Netflix started out mailing DVDs before streaming became the game-changer. One company makes custom bobbleheads from photos—it began as a hobby and turned into a viral business.

A bakery in London lets customers order cakes based on their dreams. The surreal idea actually worked. WeWork started with shared desks and ballooned into a billion-dollar venture—before crashing from over-expansion. The famous "I ♥ NY" logo started as a free campaign sketch—it became a merchandising giant.

The inventor of the Super Soaker was a NASA engineer. His side project became a favorite summer toy. A man made millions selling novelty pet rocks in the 70s. Each rock came with a care manual. A U.S. company rents backyard chickens for people to try farm life before fully committing.

DoorDash was born after its founders interviewed small businesses who struggled with delivery—an instant hit. One woman launched a business venture selling single socks for laundry victims—it grew thanks to clever branding. The Slinky was a shipping accident—springs fell and “walked” down stairs, launching a toy empire.

The "Ugly Produce" business model saves fruits and veggies that don’t meet cosmetic standards—and cuts food waste. One guy launched a business venture walking people's cats in New York. It turns out, people really do pay for that. The Rubik’s Cube was a teaching tool before it became a global toy sensation.

There’s a mobile dog-washing truck service that brings pet care straight to your driveway. A woman launched a subscription box for left-handed items—it filled a surprising market gap. A bar in Tokyo charges customers to talk to goats—it’s oddly popular and perfectly weird.