What are some good nicknames for the name Amy?

Australian English allows -z to form diminutives of female names: Mez [mɛz] for Mary, Shaz for Sharon, etc. So Amz is possible there. I seem to have found several Amz = Amy in England: e.g. Amy ‘Amz’ Goldstone | Facebook —though I wouldn’t have thought the -z diminutive applies there as well.