50 Dollars - Charles III Spider-Man

Niue has operated a licensed bullion and commemorative program since the 1990s, leveraging its status as a New Zealand realm territory to issue legal tender struck at mints worldwide under Marvel, Disney, and other IP agreements. The Marvel arrangement allows Niue to produce coins carrying characters that no sovereign mint with a more prominent coinage program could plausibly authorize.

The 5g .9999 gold format places this squarely in the collector-bullion crossover category — too small for serious stacking, priced primarily on licensing and mintage limits rather than metal content.