Many people have asked me about this method of mask making, so I put together as big of a tutorial as I could muster the energy for. I hope this helps if you have any questions! It glosses over a lot of steps, and getting good at it inevitably requires hands-on experience, but this should give people a general idea. I've included some helpful links at the bottom.
Extra Resource Links:
My tutorial on making 3D models for papercraft masks
(I am so sorry about my voice and sniffly nose ;_;)
Helpful guides on using silicone to make molds
(everyone's methods differ a little, do your best!)
There's tons of videos and resources out there, so don't be afraid to look! Remember, this is only one way of making masks. Some people prefer using clay or other materials, too. They all have their pros and cons.