The most common use of a firework is as part of a fireworks display (also called a fireworks show or pyrotechnics), a display of the effects produced by firework devices. Fireworks competitions are also regularly held at a number of places.
A gourd is a plant of the family Cucurbitaceae, particularly Cucurbita and Lagenaria or the fruit of the two genera of Bignoniaceae calabash tree, Crescentia and Amphitecna. The term refers to a number of species and subspecies, many with hard shells, and some without.
The bottle gourd, also known as calabash, is one of a number of gourds native to the Americas. The calabash makes an excellent container gourd, hence the name bottle gourd, and may be used as a vessel for storing water, a ladle and even a pipe. Gourds may also be used to create a variety of musical instruments.