Balloon!!!

A balloon is a flexible bag normally filled with a gas, such as helium, hydrogen, nitrous oxide or air. Some balloons are purely decorative, others are used for specific purposes. Early balloons were made of dried animal bladders. Modern balloons can be made from materials such as rubber, latex, chloroprene or a nylon fabric. The modern balloon was invented by Michael Faraday in the 1800s, but mass production did not occur until the 1930s. A balloon's unique properties including its low density and relative inexpensivness have lead to a wide range of applications.