Redditor Katsda decided to be Yokai, the villain from Big Hero 6, for Halloween. Katsda used a basic mask combined with a white cat mask to form the base of the disguise. She used layers of paper mache to build up the right shapes for the mask and then covered the dried mask with white spray paint. After she and her helper sanded down the bumps, they had an issue with spray paint and went back to add layers of Mod Podge to smooth out the surface again. It’s a pretty straightforward build, but the how-to documented by Kasda has helpful tips and can be applied to making any mask — not just Yokai.