I only contributed one name (Chymme) to the last thread as she is the only person I've ever met who I believe may genuinely be uniquely named. But I have come across loads of others that have to be quite unusual and that I've certainly only encountered once:
Atlanta, Rosie-Lilac, Ptolemy, Tigerlily, Nerilly, Antigone, Hezekiah, Kayjay, Jolyon, Fitch, Tree, Boaz, Athene, Lysander, Einstein, Tassita, Lilli-Kitty
Plus names that are or were common for adults but are very unusual when you come across them in the classroom today:
Gavin, Kevin, Deborah, Clyde, Richard
Plus loads of names from other cultures, most often Nigeria, Iran and India that may well not be unusual at all but are one offs to me. And often extremely long sp have great nicknames too.
I love names. There's literally only a handful that I really can't get on board with. And unusual ones are nearly always fabulous, ime.