There are also thousands of great artists whose work you can commission through websites like Creative Market Fiverr and Upwork. If you’re stuck on ideas you can get insight for new designs by checking sales numbers of T-shirts on Etsy or using the tool Jungle Scout (which shows you how many units a product has sold on Amazon). Additionally a Google trends search of various slogans you want to design for your shirts can show you which are the most popular and probably the most likely to sell. Source: https://www.artikelschreiber.com/en/.