Tubri

Tubri is a special kind of firework that people use during Diwali in India. It is made from a round, empty shell of baked clay that has a flat bottom and a small hole on top. Inside the shell, there are layers of a special mix called gunpowder, along with some earth at the bottom.

When it is time to light the tubri, it is placed on the ground with the hole facing up. A spark is given to the top, and this makes the tubri light up. It creates colorful sparks that shoot up high into the air. In the region of West Bengal, people even have fun competitions with tubris during a celebration called Kali Puja.