I had a collection of retarded fish, including hermaphrodite guppies (colour of a male, size of a big female), A gold severum with no top jaw (looked like the muppet aliens) a jewel with no tail, many different balloon fish.
my ultimate aim was to get a 2 headed molly.
im not too keen on shipping NZ natives around, im sure there is some one more local that will help you locate some, or else if your in TGA look me up and i'll show you a couple of spots.