About this 3D model
Here are 3 files that do the same thing, if you need references there is a version for you. If you just need the template some of the frame files will print faster. This is the version my friends are making. The original pattern is made by Barbara and Lauren, and their FB group with instructions to make the masks is here. You use this file with a cutting wheel to cut the pattern. I've included a dxf file for anyone with a cricut cutter or something similar.