I have some very unusual names for you, Isuelt (can be spelt Isyold) pronounced isyolt. From the name of an Irish princess in Arthurian legend. Tamar taken from the river of the same name in Cornwall, UK. Elenwen meaning 'star maiden' taken from Tolkein's elvish Sindarin. Or if u really want to confuse people with the spelling there is always Siobhan (pron. shivawn). Good Luck!