I have been seeing those on pinterest, they look interesting and like they can be laundered.
I’ve tweaked the HK pattern which is very similar to the one you have been using @AIMR and @TheMistressT, but simplified.
This is the HK mask pattern which I’ve altered by adding to the outer edges and creating a 2 piece pattern, rather than 4. The stitching is greatly reduced as well. Here’s the longer post explaining how I did it, I hope someone will give it a try and let me know how it goes. I will have fun tweaking it to incorporate any suggestions.
Here it is on Rob’s face. Ya, he’s cute and I know it 
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