Royal Brooch

Wu's brooch, originaly an earring, is an elaborately decorated golden piece of jewelry, worn by King Wu as a substitute for a crown, as all other coronation objects were stolen by looters during the Anarchy in the Earth Kingdom.

History
Wu got the brooch when Gun arrived, with almost no entourage and explained to the future king that almost all of the ceremonial objects were stolen during the riots in Ba Sing Se, and that the sole item not stolen was an earring, which Wu was forced to wear as a brooch. At first, the future king was furious, but was later accapted the brooch instead of a crown. During the coronation, when Kuvira proclaimed his rule illegitimate and made herself the leader of her newly established "Earth Empire", Wu was seen wearing the brooch, and pointing at it, defending his title as the rightfull ruler of the Earth Kingdom to no affect.