Foster's is flexing its muscles with Hulk-like strength in S&N's latest ad for the brand's Scuba can. London Tube escalator screens will feature animated images with the metal of a Foster's Scuba can - which contains a lager widget - ripping apart Hulk-style to reveal a full glass. The Scuba can will also be backed by outdoor and online activity, with the strapline 'Foster's Scuba - Our Best Ever Tinny'.