I just wanted to share what I did to place mesh material behind my teeth. I wanted something that was easy to breathe through, was removable for SWAT submission, and didn't show when trooping.
I used metal mesh material commonly found at the home improvement stores for keeping leaves out of the gutter. (You can purchase a small 4' section). It's easy to cut and bend. Once painted, I wrapped the edges with industrial strength velcro, and affixed it inside the bucket.
View from outside:
Inside:
Sample of the material:
Pieces cut, bent, and painted: