1 Dollar In the name of Elizabeth II, 6th Portrait - Quokka, Colored Silver Proof

The quokka has become an unlikely icon of Western Australian tourism — the animal's facial musculature produces what photographs read as a permanent smile, and the resulting selfie culture around Rottnest Island (where the main population lives) has made it one of the most photographed marsupials on earth. Perth Mint has leaned into this consistently. The five-nines silver specification here is notable: .99999 fineness is rarer in circulation-adjacent coinage, requiring additional refining steps that standard .999 silver skips entirely.