Upon the mantelpiece stood a miniature replica of the world&rsquos largest cannon, every inch of it made from chocolate, down to its dark chocolate cannonballs and white chocolate placard that read &lsquoJaivan 1792, World&rsquos Largest Cannon&rsquo. I recalled that Jaipur&rsquos Jaigarh Fort did indeed house the largest wheeled cannon ever built, commissioned by Maharaja Sawai Jai Singh. Reportedly, it took four elephants to swivel around the fifty-tonne barrel, which shot out cannonballs weighing fifty kilos Popping a cannonball into my mouth, I survey my sumptuous room at the Fairmont Jaipur, the Fairmont group&rsquos flagship hotel in India.