A custom sticker printer sent a pro-Trump mass SMS and enraged its clients

Image: Alex Parkin / The Verge; Photos by Jabin Botsford/The Washington Post via Getty Images The fallout from the assassination attempt on former President Donald Trump at a rally over the weekend is seeping into even the most tangential circles — in this case, the print-on-demand custom sticker industry.This week, Sticker Mule, a popular option for companies, creators, event organizers, and others wanting branded merchandise, shared a long message expressing support for Trump.“Peop