2008 $5 Little Dinkums Binny Bilby 1/25oz Gold Proof CoinG'Day! My name is Binny and Im a bilby. We are marsupials which means we carry our babies in a pouch just like the kangaroo. We are nearly blind, but we have great big ears and a wonderful sense of smell. For dinner we like juicy insects and spiders, and sometimes a seed or two. Brought to life in cartoon style, Binny is part of the charming gold proof series Little Dinkums.