Based on m research, selling stickers through ecommerce marketplaces like Etsy is highly lucrative. There are stores on Etsy that have sold stickers and made thousands of dollars. I have no experience on this field, but I am quite fascinated. To sell stickers, you need graphic design skills, or you can buy designs with a commercial license. Then list your stickers for sale on Etsy. You will then have to buy sticker printer and when you get orders you can start printing and the ship to your buyers. Running ads on Etsy can boost sales, and the goal should be to encourage buyers to order multiple items. Do you have any experience?