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This case study shows how a simple digital product—adult coloring books—can become a reliable passive income source. Diamond Chanel combined three online tools—Etsy, Sale Samurai, and Canva—to launch her own coloring book shops. In just 24 hours her listings generated $126, and within a month she netted $3,330 in profit.
Diamond wanted a side hustle that didn’t require constant updates. She chose low-content digital books because once the files are created, there’s no inventory. Her goal was to test the market quickly and see if she could make sales before investing more time.
She usedSale Samuraito uncover high-volume, low-competition keywords on Etsy.Canvaprovided ready-made templates she could customize in minutes. And she leveraged Etsy’s built-in ad platform to push her listings in front of buyers fast. This strategy are simple to follow and scale.
Search engine optimization is at the heart of Etsy sales. Diamond started with “coloring books” to identify suggested tags like “adult coloring books,” “printable coloring,” and “instant downloads.” She then looked for sub-niches—like fashion affirmations and housewife themes—that showed solid search volume but manageable competition.
Inside Canva, Diamond filtered for “coloring pages” and picked templates she could edit. She used black-and-white vector images sized 8.5×11 inches, added motivational text on selected pages, and exported each book as a single PDF. Each book contained 20–50 unique pages ready for instant digital delivery.
She signed up as a seller, created individual listings with optimized titles—like “Adult Coloring Book, Fashion, Positive Affirmations”—and filled in descriptions packed with keywords from Sale Samurai. By selecting “digital download,” she eliminated shipping and fulfilled orders instantly.
After surveying similar listings, Diamond priced her books at $2.00 each. She set an Etsy ads budget of $15 per day to drive traffic right away, hitting a 3% conversion rate that translated to 63 sales and $126 in daily revenue.
With only $460 in monthly expenses (Sale Samurai subscription plus ad spend), Diamond’s shops brought in $3,780 in sales and $3,330 in profit. Creating multiple niche titles further boosted reach, proving that digital coloring books can deliver real passive income.
Selling digital coloring books on Etsy is accessible to anyone comfortable with basic design tools and a little SEO research. By focusing on niche keywords, clear titles, consistent ad spend, and simple PDFs, you can replicate this side-hustle model and build your own passive revenue flow.
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