It turns out "my" shirt design was stolen and used by some US assholes who now sell a Rob Anybody t-shirt.
I can't do anything about that, except giving everybody the design for free - if it has to be out there, nobody should profit from it.
If you end up using it, please PLEASE donate to one of Pratchett's favorite charities or at least to somebody in need.
And add a #GNUTerryPratchett line somewhere, maybe?

Edit: here's the SVG
https://www.dropbox.com/scl/fi/slcpssbvoz1txzcbnup8i/hope-anybody-GTP.svg?rlkey=i0m9ln5otnac67uc9rgr5bjjp&st=5qwl623v&dl=0