TIL there is a Canadian $50 coin.
The UK minted a £10,000 coin once
More Money Less Problems

A trillion dollar platinum coin sends us down a wormhole, re-examining a classic question: why can’t we just print more money?

Radiolab Podcasts | WNYC Studios
How bout a tree fiddy coin
I ain’t giving you no three fiddy you god damn Loch Ness Monster!