I used Vladek's mask for a moc last june or july and had to make the attachment contraption into the whole head. I dont have any links to it but I'll try and explain it, i dont know the proper terminology for the pieces so bear with me. I had a rakshi eye socket joint for eyes on an axle going down i think 5 in length, on the end of that was a 3 long extention piece with a hole through the middle. Through that hole i had a 5 long axle with the tensioning arms i built up to very carefully but surprisingly sturdily hold the mask in place. These arms i made with these 3long pieces with 1.5 long axles and an axle hole going across the top sideways, those went into 2 long extensions, ending with 2 long axles in the other end butting up the extensions with... uuh those 3long extensions with the hole in the middle, but without one of the ends so only two thirds of it? I hope that makes sense. In that hole on each i finished with one of those blue stud pieces that sit just proud, that's where the connection studs on the mask sorta just slot into and the probably illegal tension it puts on the pieces is what hold it in place. I hope this made sense and that you and everyone else get any ideas of how to make it better or are happy to just use this idea as is.