I was looking for customized couple tshirts. I have been trying all the Love for Damar 3, Hamlin Island Buffalo Football T-Shirt in addition I really love this websites like 99shirts, teeshood, ilogo.in, printland.in, inkmonk and by far inkmonk is the best considering my requirements. The customization was pretty easy and price was good too. Develop your designs, purchase a silk screen system or a DTF printer, print the design, and advertise on your choice of platform. Also consider selling on your own ecommerce store. Nowadays there are free platforms like Tictail to sell on, but you can also go for professional ecommerce platforms like Shopify. Yes you can do that as many people are doing t shirt business and earning good money. Online selling is good option for any business, now a days people search online shopping site due to busy schedule they prefer online.