You could just go all black face, but if not; a Zentai suit would work great!
Then go to your local fabric store, find see through fabric like the Zentai suit and sew them on.
I think that might be the best option right now. Or you can just go the whole black face.
Try asking another SNOWMAN cosplayer what they did with there's.
Costume Con Toronto 2014
Anime North 2014