Adorable Penguin Brutality shirt available from Varusteleka:
https://www.varusteleka.com/en/product/forgotten-weapons-penguin-brutality-t-shirt/81986?option=81709

I'm sure you've heard the one about how targeting an enemy soldier with a .50 BMG is a war crime, but targeting his belt buckle is okay because it's "materiel"? Yeah, it's totally false, but boy does that story get around...