THE ICE CAGE. Mehanata's subzero drinking lounge, with Balkan rhythms, frosty ceilings, and a stripper pole. An ethereal Siberian paradise featuring Manhattan's only ICE CAGE freezer room. $10 to open the door, $20 per head. You'll be clothed in a Russian military uniform and handed an ice shot glass. The walls are lined with vodka - but don't get mesmerized. You've got two minutes it make it count...