Rowan University engineering and medical students have developed a prototype for a durable, lightweight, reusable face mask to augment the supply of face masks during the current shortage of PPE during the COVID-19 outbreak. The mask is provided “as-is” and primarily acts as a mechanical barrier. It is not a replacement for N95 masks.
The Verge has a post on DYI face shields made with 3D printers
Dell Technologies has more on 3D printed face shields as does NPR.