Njordr Earring

Cannot be auctioned, traded, bazaared, or delivered.
Cannot be obtained as a random reward from the Gobbie Mystery Box Special Dial and similar sources.

In Norse mythology, Njörðr is a god among the Vanir. Njörðr, father of the deities Freyr and Freyja by his unnamed sister, was in an ill-fated marriage with the goddess Skaði, lives in Nóatún and is associated with the sea, seafaring, wind, fishing, wealth, and crop fertility. (Wikipedia)