Greg Rucka and Leandro Fernández, co-creators of The Old Guard, have created a pair of t-shirts as charity fundraisers—the Nile Freeman "Black Lives Matter" shirt benefits the SPLC Action Fund, and the Nicky and Joe "Love is Immortal" shirt benefits The Trevor Project.
You can find them -- and the Lazarus charity fundraiser shirts, too -- at Greg's Bonfire page.