The Yaocho Bar Group chain of nightlife joints has designed a series of drink coasters, dubbed Violent Coasters, that feature portraits of Japanese women on them -- portraits that reveal facial injuries when cold drinks are placed on them.
To begin with, the coasters feature head-and-shoulders shots of Japanese women. However, they are printed with thermochemical ink -- so when cold drinks are placed on the coasters, their temperature drops, initiating a chemical reaction that changes the color of the women's faces. In addition to revealing cuts and bruises, the message "Don't let excessive drinking end in domestic violence" appears.
The Yaocho Bar Group has a history of carrying out creative and hard-hitting promotions to discourage irresponsible drinking, and these brutal drink coasters are a surefire way to send across a strong message.