Appa's armor



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

History
Sokka first mentions his idea to build armor for Appa in "The Runaway", where he uses money scammed by Toph to buy the pieces required. Sokka begins making the suit of armor during the episode "Nightmares and Daydreams". It was finally worn by Appa during the invasion on the Day of Black Sun. Appa is seen wearing it at the beginning of "The Western Air Temple". It is unknown what happened to it afterwards.

Design
Appa's armor is made of metal and leather, containing plenty of compartments, including a "pocket" to hold smoke bombs and other weapons. There are also two large water barrels on either side, enabling Katara or another Waterbender to bend large amounts of water while safely riding atop Appa. It is likely that Sokka learned how to construct it while studying under Piandao.