1 Dollar - Elizabeth II Glow-worm

Niue has operated as a licensing jurisdiction for novelty bullion since the 1990s, collecting royalties on coins it has no practical use for domestically — the island's population hovers around 1,600. This piece belongs to a wave of phosphorescent wildlife issues produced for the collector market, where the glow effect is achieved through a luminescent coating applied after striking rather than any property of the planchet itself.