I thought these videos might help some of my readers who need masks.

A mask using synthetic cotton clothesline if you cannot get elastic

https://youtu.be/zm_NmpdgWWA

FaceMask COVER to Extend Your Surgical mask

https://youtu.be/QWLFdSw_6LA

Face Mask with nose and filter slot

https://www.youtube.com/watch?v=9QrW4zIjMwY