Kydex isn’t ballistic, but it would stop a knife. Hockey masks might actually have some ballistic qualities, but would have to research that.
I could just imagine trying to convince my wife to stick straws in her nose so I can pour plaster or something all over her face to make a mold…. Might be fun to see what she would say and how close to letting me do it I could get…. My ER bill due to feral, angry wife would definitely surpass the $185 mark.