I think there's a difference between non-English names, and creative spelling bordering on the ridiculous.
But then I guess that depends on your definition of what's normal I guess.
I do know one mum at daycare who got really upset when told her daughter, Kali, had "made up" spelling when in fact it's the name of a Hindu goddess.
But then you have people who name their kids mykaelah and don't realize it's a female vesion of Michael until their OB comments. (sorry to any parents of mykaelahs I chose it cos she's a relative)