I HAVE THE DUMB, arched in varsity lettering around a chimpanzee holding a hammer with total confidence and no plan, printed in deep navy ink. The joke lands harder because it is half true: wild chimpanzees really do use hammers, picking stones and branches to crack nuts, a skill passed down from mother to child. This one just has not decided what the nut is yet. Made from lightweight 100% ring-spun cotton with a soft, sensory-friendly feel. Every order funds kelp restoration on the Pacific Northwest coast.