u/IDKhowtonamemyself01

So i wanted to make a kemono fursuit head and looked up some tutorials. Nearly all of them showed those kind of white plastic masks to be used, alongside other materials like faux fur etc. I wanted to also add hair and ears (obviously), but i figured that the mask itself wouldnt hold it properly, yet somehow everyone glues everything on. Are there any special helmets i could buy alongside the mask to glue everything onto it? Am i supposed to make something out of cardboard and/or foam and glue it to the top of the mask?? Im genuinely confused as nowhere could i find anything about it, or maybe im just not looking well enough. (Sorry for the wonky writing, im not good at english)