Links to online instructions for other masks

Here is where I found good instructions for making a basic pleated mask without elastic.

Here is a video tutorial that improves on the basic pleated mask, with upgrades

• filter pocket

• inserting wire for good fit around nose (to avoid fogging glasses).

• https://www.youtube.com/watch?v=vnGKSmnQBJs

• simplest:

• https://www.youtube.com/watch?v=gSxZMYjDBZE

Here are instructions on how to tweak the basic pleated mask into a more contoured shape. 

Here's a fun version of a contoured mask for tech lovers.

The CDC has collected several different sets of instructions (make from a T-shirt, bandana, etc., including no-sew)

other links for simpler round(ish) face mask (without nose wire), but they did not work well for me when I tried them.