Changing the spelling of an existing well-known name only makes you, and the unfortunate bearer of the name, look tacky and illiterate.
Changing the spelling of a name to make it seem 'unique' or 'quirky' isn't cute. It just looks like the parents had a seizure whilst signing the birth certificate.
Butchering the spelling of a name doesn't make it unique it makes the parent look illiterate.
Different and obscure names can be nice and can be memorable. The vast majority of the time when the name is used, it is spoken.
But different "spellings" are not cute and cause no end to confusion and problems.
I like the spelling " Audreigh"