Source: https://ygorganization.com/these-are-legal-tender-in-niue-yes-but-what-about-on-duelist-kingdom/

Yes, you can technically spend these in Niue as two bucks there. No, you really shouldn’t do it.

APMEX have released new collectable colourized silver coins, this time featuring Maximillion Pegasus and Dark Magician Girl. Each coin contains 0.999 oz pure silver. The reverse side on both features the Yu-Gi-Oh! logo, Niue public seal, and tender value.

As before, they can also be purchased in a gift set for $129.99

• Pegasus coin: $59.99 USD
• Dark Magician Girl coin: $69.99 USD
• 250 of each available