There was a girl called Storm who used to live downstairs from me when I lived in a flat. She had a younger brother named Rainbow. I spoke to him and he said that he is going to change his name when he is old enough. Both Storm and Rainbow have an older sister named Lightning.
I also had a flatmate whose name is Bear and he loves his name. I will never forget when I asked him what his name was when I first met him and he roared "MY NAME IS BEAR AND I AM A MIGHTY ICELANDER!!!" (he was pretty drunk at the time, and he was dressed like a viking) to this day he remains as one of the most interesting people I have had the pleasure of sharing a living space with.
There is also a guy I went to university with and he was called Benedict. He is the only person I know called that, and while I don't think it is outlandish, I think it is unusual. However, when he said that he was from Oxford and his parents work at the university, I wasn't all that surprised.