Aurora, the double-decker-bus-sized polar bear puppet specially commissioned by Greenpeace to lead an Arctic-inspired street parade to the London HQ of oil giant Shell on 15 September. The three-tonne marionette bear will be operated from the inside by a team of 15 puppeteers, including artists from West End blockbuster War Horse, and will be hauled on ropes by 30 volunteers along a route including the Houses of Parliament and Westminster Bridge. As well as having the animal’s characteristic curved gait, the 41-foot long puppet is fully articulated and can move her head and jaws, while the fabric-covered sides billow, creating a breathing-like motion.