FreeGameDev.net t-shirt is now available: https://identical-games.launchcart.store/shop
I tried to get a picture of myself with the shirt but didn't get any good ones. I'll try again at some point. This is my store and does not generate revenue for this site. It's not hard to alter the logo image to generate your own t-shirt if you prefer. I'll probably put my file up somewhere at some point. (I have to find it again as it's been awhile since I generated it.)