Continuing the theme of Map T-Shirts. The nice people at Boundless had this great make your own map t-shirt of Boston activity by their booth at FOSS4G 2017 (which of course was in Boston). Lots of people chilled out while painting their personalised maps.
I had a go but since I am not a cartographer the results were rather more free form and painting by numbers than an effective map
If you have a pic of a map t-shirt that you want to share send it to us