I was lucky to get a winning lot for the Storm Earring we got from the ??? Earring. It has +15 mp and -4 enmity during assault at level 50, super for doing the capped missions on RDM as my other RDM earrings are 70+.
After doing the Ilrusi Atoll Golden Salvage assault... 25ish times so far, we've got the ??? earring about 40% of the time (it's normally a box).
From that, we've got 1 Heims Earring, appraised by the Qiqirn appraiser in Al Zahbi. Whether you can only get it from him or not, I don't know. But that's where we got ours.