Learn how to monetize AI tools like Midjourney and ChatGPT through print-on-demand t-shirt design. Discover strategies for researching niches, creating high-quality designs, and selling on platforms like Merch by Amazon, Redbubble, and Teepublic. Explore effective prompts for quick results and avoid common mistakes in this comprehensive tutorial. Gain insights from 15 years of experience in online t-shirt sales and understand how AI can revolutionize the merch creation process, potentially leading to passive income opportunities.