Print on demand as you can understand from the name its printing based on demand, that means in order to print something on staffs you have to receive a request from a customer, and if you want to earn from it all you need is internet and a phone or a pc in that way you can design images or pictures for T-shirts, Mugs, Hats, Phone case, and upload the image on websites that have a stoke nd they print it and send it to a person who order your design, that means you don't have to spend any money to print designs yourself and don't have to buy inks and printing device, if you have small money you can advertise your goods online but if you don't want to spend any money you can publish it on free sites,
For thus who don't have editing and designing skills you can still use AI to generate images for thus goods and still make money.
For thus who don't have editing and designing skills you can still use AI to generate images for thus goods and still make money.