College student starts a side hustle in his parents’ apartment with only $20 and turns it into a $500,000 business

  • Tension – Dorm-room success stories make six-figure wins look instant, but the reality is an exhausting grind most people never see.

  • Noise – Social-media gurus frame “one viral post” as the whole strategy, masking the months of trial, error, and tiny reinvestments that precede it.

  • Direct Message – Lasting, bootstrapped growth comes from relentless iteration and disciplined cash-flow recycling—virality just speeds up work that persistence already set in motion.

To learn more about our editorial approach, explore The Direct Message methodology.

Just three years ago, Jason Siu, a 21-year-old college junior at the University of Hawaii at Manoa, was selling $3 stickers on Snapchat to save up for car parts.

Today, he’s transformed that side hustle into a thriving business called Invalid.jp, which brings in over $500,000 annually selling embellished car accessories and stickers.

Siu’s journey started in a humble setting – his parents’ 1,000-square-foot two-bedroom apartment in Honolulu.

He would buy car accessories wholesale, add his unique touch by customizing them with light panels or homemade designs, and then resell for a profit. Invalid.jp now offers a range of flashy car accessories including LED-lined rearview mirrors, cupholders, visors, and license plates.

From selling stickers on Snapchat to raking in half a million a year

This young entrepreneur’s success didn’t happen overnight.

He credits his relentless posting strategy on social platforms for the growth of his business.

“A lot of times, people I talk to trying to start businesses only try for four or five months and [quit when] it doesn’t work,” Siu told CNBC Make It. He believes that consistent posting can eventually lead to content going viral.

A prime example of this is a popular video of Invalid.jp’s light-up stickers posted in 2022. This video alone led to $38,000 in sales in just one day.

However, Siu admits that not every day brings in such high revenue. Over the past couple of years, he has learnt how to make his business more consistently profitable, often relying on social media ads to boost Invalid.jp’s revenue.

Recently, Siu has expanded his operations by renting a warehouse for his business. His dedication and persistence have paid off – since he started, he’s pocketed about $400,000 from his business.

Siu strongly believes that his side hustle is replicable by others. He emphasizes the importance of consistency and persistence.

He also advises budding entrepreneurs about the risk associated with buying large inventories before knowing if people like the product.

The journey has not been easy for Siu but he wouldn’t have it any other way. “When you’re doing a side hustle, you’re going to be working 24/7,” he said.

But for him, seeing his living room filled with boxes of his products ready to be shipped is a sign of success.

The Direct Message

Sustainable side hustles aren’t powered by a single lucky break—they compound daily tweaks, feedback loops, and reinvested profits until luck finally takes notice.

The role of social media in entrepreneurship

Siu’s success story is emblematic of a wider trend: the rise of side hustles among young entrepreneurs and how social media makes it all possible.

With the advent of social media platforms and online marketplaces, turning a passion project into a profitable business has never been more feasible.

Invalid.jp’s growth trajectory underscores the importance of digital platforms in this new entrepreneurial landscape.

Siu’s strategy of consistently posting content on Snapchat and TikTok not only helped him reach a wide audience but also led to viral marketing moments that significantly boosted his sales.

This suggests that understanding and leveraging social media is crucial for aspiring entrepreneurs.

Furthermore, Siu’s approach to his product line — starting small, testing the market, then gradually expanding — offers valuable insights for those looking to start their own businesses.

His caution against buying large inventories before validating product-market fit serves as a practical lesson in risk management for new business owners.

However, Siu’s experience also highlights the challenges of running a side hustle.

As he points out, it often involves working round the clock — a stark contrast to traditional 9-to-5 jobs. This level of commitment and persistence might not be suitable for everyone.

In sum, Siu’s journey from selling $3 stickers to running a $500,000-a-year business provides both inspiration and practical advice for young entrepreneurs.

His story illustrates how digital platforms can help launch and scale businesses, yet also emphasizes the dedication required to make such ventures succeed.

As side hustles continue to gain popularity, it’s likely we’ll see more success stories like Siu’s in the future.

As we look towards the future, Siu’s story illuminates the potential of side hustles to transform into thriving businesses. His journey underscores the power of digital platforms and social media in shaping the entrepreneurial landscape.

It’s a reminder that in this digital age, a good idea, coupled with persistence and savvy use of social media, can indeed turn into a profitable venture.

In essence, Siu’s story is not just about his individual success. It’s a testament to the evolving nature of entrepreneurship in a digital era, where anyone with an idea and the right strategies can potentially make their mark.

As such, we can expect to see more young entrepreneurs harnessing the power of social media, digital platforms and their unique ideas to carve out their own success stories.

As the landscape of entrepreneurship continues to evolve, one cannot help but wonder: Who will be the next Jason Siu? And how will they use emerging technologies and platforms to transform their side hustle into a lucrative business? Only time will tell.

Picture of Wesley Mercer

Wesley Mercer

Writing from California, Wesley Mercer sits at the intersection of behavioural psychology and data-driven marketing. He holds an MBA (Marketing & Analytics) from UC Berkeley Haas and a graduate certificate in Consumer Psychology from UCLA Extension. A former growth strategist for a Fortune 500 tech brand, Wesley has presented case studies at the invite-only retreats of the Silicon Valley Growth Collective and his thought-leadership memos are archived in the American Marketing Association members-only resource library. At DMNews he fuses evidence-based psychology with real-world marketing experience, offering professionals clear, actionable Direct Messages for thriving in a volatile digital economy. Share tips for new stories with Wesley at wesley@dmnews.com.

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