thinking of cosplaying as "friend"

from 20th century boys. at next years anime detour in minnesota. anyone whos done it before have any tips about the mask?

I've never done it before, but I think it wouldn't be very hard. The most important thing would be finding a material for the mask that wouldn't be hard on you, something you can breathe in and won't make you sweat a ton.

I imagine that cutting the material and getting it comfortable on your first would be good, too, before trying to draw the symbol on it. Otherwise it may be crooked on your face.