Here's the top MCS tags found for "mask"

• Gas Masks
• Masks
• Batman: Mask of the Phantasm
• The Mask
• The Legend of Zelda: Majora's Mask

Russian Riot Police

The masks they are wearing are real, but fit so well with the game that the stilt walker was photoshopped in.

Faceless Masses

Masks?

Why Wait Till 1955? We Might Not Even Be Alive

A formal gas mask dinner.  Kinda reminds me of the Gas Mask Brigade