Light Face Shield

I just tried to design a face shield that is light weight and takes the least time and material to make. You can assembly it with a clear plastic sheet and some runner bands. Cut a little slit at the middle of the plastic sheet's edge and and put it into the model. Then, use a stapler with the plastic sheet to lock it with the model as shown in the pictures.

Printing:
You can print it as fast as you can and with high layer height such as 0.3-0.4 mm.