Thanks to Aiden for pointing me towards this wonderful story about the history of steel drums, and the Shell oil company's ambivalent relationship to them - Shell deny any knowledge of their oil drums being used for any improper purpose, even though a full set of drums can now cost up to $10,000: "'The panmen still prefer the Shell barrel,' adds 71-year-old Miky Galera, Shell Trinidad's aviation fuel manager during the 1960s. Suppressing a grin, Rosales, Shell's barrel superintendent, says, 'I know we make the best musical oil drums in the world.'