Budding surgeons may soon train on stretchy, lifelike 3D-printed skin that oozes out blood and pus when cut.

The 3D-printing hype ended years ago, but the threat of tariffs and the closing of the de minimis exemptions means that making your own stuff might actually hold some value.

3D technology is used in a wide range of fields, including film, video games, architecture, engineering, and product design. It allows designers to create digital models of objects that can be ...