Appa's armor



Invented, drafted, and constructed by Sokka, Appa's unique and durable armor served to protect him from various attacks such as fireballs, spears, and projectiles.

History
Sokka first mentioned his idea to build armor for Appa after expressing concern for Toph's scamming efforts, which Toph dismissed by providing money for Sokka to purchase the materials required in the nearby Fire Fountain City. Sokka began making the suit of armor while staying in the Black Cliffs. He originally built the armor with an Air Nomad insignia crafted on the frontal headpiece, but it was not seen during the Invasion, where it was finally worn by Appa on the Day of Black Sun. After the defeat at the Fire Nation Capital, Appa wore it again on the way to the Western Air Temple for shelter.

Its ultimate fate after the War is unknown.

Design
Appa's armor is made of metal and leather and contained multiple compartments, including a "pocket" to hold smoke bombs and other weapons. There are also two large water barrels on either side, enabling Katara or any other waterbender to bend large amounts of water while safely riding atop the sky bison. It is likely that Sokka learned how to construct armor while studying swordcrafting and blacksmithing under Piandao.