Making masks — whilst it is not possible to make and contribute homemade masks to medical staff, it is possible to make them for your local community where masks are hard to find. In some places (areas of northern Italy for example), people are obliged to wear them outdoors, so in the face of the shortage, homemade becomes a useful source.If you want to have a go, take a look at the two mask patterns Spoonflower is offering for free, both accompanied by a clear video tutorial on how to make them. Scroll down the Spoonflower web page to find the tutorials towards the bottom, along with the mask download links.
I must reiterate that these masks are NOT medical masks and are intended for community use only.
Click for free mask tutorials