Real-revenue cases
A brother-and-sister team in Istanbul handcrafts leather notebook covers and stationery, moved from Etsy and eBay to their own Shopify store after PayPal left Turkey, and now averages about $40K in monthly sales.
01
It replaces buying mass-produced stationery or craft goods through middlemen; customers pay for handcrafting, customization, and buying directly from the maker. The 138% year-over-year growth and repeat purchases suggest durable demand rather than a one-off novelty.
End customers order directly on the company's own Shopify store; most items are made to order and paid via PayPal, with no distributors, wholesalers, or physical retail.
Mass-produced stationery and craft goods bought through middlemen
02
Started selling locally, then opened an Etsy store to reach global buyers, later expanding to eBay.
03
For AI businesses: validate willingness to pay on existing platforms or communities before moving to your own channel, and treat customization and direct creator access as the premium hook instead of competing on price.
04
Revenue basis · Founder self-reported, unaudited (see source page)
The roughly $40K monthly sales figure is founder self-reported and unaudited, and it is unclear whether it is revenue or net income.
No customer acquisition cost, repeat purchase rate, or gross margin is given, so the durability of growth cannot be judged.
PayPal leaving Turkey in 2016 was a payment-environment event with limited relevance to AI businesses.