When you think of side hustles, flipping 2,000-year-old Roman coins probably isn’t the first thing that comes to mind.

But for Dean Kinzer, what started as a nod to his dad’s hobby turned into a $86k/year side hustle, one built around history, storytelling, and a very specific type of collector.

Dean runs KinzerCoins.com and The Ancient Coin Hour on YouTube, where he shares his Love for ancient coins and educates others who are curious about the space.

Here’s how he did it.

Tune in to Episode 668 of the Side Hustle Show to learn:

• how Dean turned a collector’s passion into real income
• why ancient coins are the ultimate niche product
• the low-risk strategies he used to build an $80k side hustle

Full Show Notes: How I Built an $80k/year Side Hustle in an Obscure Niche

New to the Show? Get your personalized Money-making playlist here!

Sponsors:

Mint Mobile — Cut your wireless bill to $15 a month!

Indeed – Start hiring NOW with a $75 sponsored job credit to upgrade your job post!

OpenPhone — Get 20% off of your first 6 months!

Gusto — Get 3 months free of the leading payroll, benefits, and HR provider for modern Small Businesses!

Most Recent Episodes

June 4, 2026

742: $60k/mo Selling Baby Sleep Masks, the $72k “Secret” Detailing Business, $500k in Print on Demand Candles, and more

What do a baby Sleep mask, a detail van, and a print-on-demand candle have in common? They're all quietly generating serious income for real people — and in this episode, we dig into the numbers...

Listen · 54:18

June 1, 2026

How to Start a Roadside Produce Stand: $1,000 a Weekend Flipping Peaches (Greatest Hits)

“Nothing puts a smile on a consumer's face quicker than a good peach.” And it turns out, flipping produce can be quite the profitable side hustle! ($3000 in one weekend from one stand before we...

Listen · 54:11

May 28, 2026

741: $1500/mo With His ATM Side Hustle

What if you could earn $1,500 a month in side income with just an hour of work a week — and do it with a business that practically runs itself? That's exactly what Will Butterton has built with...

Listen · 41:17

Load More Episodes

Nick Loper Chief Side Hustler

Nick Loper helps people earn money outside of their day job. He's an author, online entrepreneur, and host of the award-winning Side Hustle Show podcast, which features new part-time business ideas each week. As Chief Side Hustler at SideHustleNation.com, he loves deconstructing the tactics and strategies behind building extra income streams.