Here’s a free design for making face shields to give away or sell at material cost.
https://www.prusaprinters.org/prints/25857-prusa-protective-face-shield-rc3
Edit: Disinfection guidelines from Prusa: https://help.prusa3d.com/en/article/prusa-face-shield-disinfection_125457
Edit 2: Here’s a design that’s approved by NIH. https://3dprint.nih.gov/discover/3dpx-013238
https://www.prusa3d.com/covid19/
I found this for the clear plastic shield part because I don’t have a laser cutter:
https://www.mybinding.com/10mil-crystal-clear-covers.html?sku=TC108.3X11.7S
I don’t know if that material will work or not. I hope so. I will keep you updated. The materials arrive on Monday. I ordered them on the 23rd.