In the last couple of months I have friends that have had baby boys and have called them:

D j a n g o - pronounced 'jang-go'

Z e b u l o n

Pretty unusual but it is growing on me
Oh dear... No offense to your friend, but that second one sounds like the villain in a bad sci-fi movie

Well, obviously Ianto is a strange name and my own (Tenielle) isn't one you hear often, especially with that spelling My cousin has a Siobhan (shuh-VON) and a Bodie (boh-dee)