I have been building my Chaoseater out of eps foam entirely with a pvp pipe for the hilt and a few smaller pieces for added stability between the joints, Here is a pic of me wearing both of them, before i do the final seal using smooth cast 321, then off to the light sanding/ painting process.
Here is a pic of both my sword and gauntlet:
P.S. i am also making my sword fog just like it does in the game. If you guys want to see more of my daily process of this costume, go to this link:
I have also made my gauntlet articulated as well (that was def a good test of Patience lol) and it lights up too!