I had this link bookmarked about two years ago but somehow I have lost the tutorial.

It was a tutorial on a cosplay blog about making a Char Aznable helmet and the primary technique it used was thin strips of cardboard in a web to get the curves, probably with masking tape, and then using resin or paper mache or something else over it (I am not fluent in Japanese now and I was significantly less fluent then). 

The cosplayer whose blog it was also did a really good Baron (Cat Returns) mascot head and the tutorial section also had how she did the Baron head/helmet.

Anybody know what I’m talking about, or any techniques that are similar?