Rare Unveils on Instagram: "(Follow us) @rareunveils .This is footage of one of Japan’s most extraordinary firework shells, known as the yonshakudama. These massive aerial shells are handcrafted by expert pyrotechnicians and represent some of the largest fireworks in the world. The term refers to shells that can weigh hundreds of kilograms and burst into enormous spherical displays many hundreds of meters across the sky. In Japan’s long tradition of hanabi festivals, such shells are only made in