Some T-shirt design software programs design specifically for creating personalized iron-on transfers for T-shirts and similar projects. Many come with templates you can use to get you started.

Colorful T-shirts were made possible by iron-on transfers in the 1970s. | Hazel Nicholson, Flickr // CC BY 2.0 Harrison Cutler wasn’t having any of it. It was September 1966 and Cutler, who was ...