These masks are rectangular and come in various sizes. Currently we are die cutting them with the dimensions of 6"x 9" for adult masks. We are waiting on a die that we cut 8"x 9", which we've been told produces a better fitting mask. Acceptable tie variations can be found below the video.
The step by step instructions provided by Akron Children's Hospital can be downloaded here
These masks are in the shape of an axe blade and come in various sizes. We aren't die cutting this pattern yet but will accept donations of face masks using this pattern.