[iv597]

We've had $1 coins for a hot minute. You can almost only ever find them at the bank, post offices, and some other government places (the Sound Transit ticket kiosks here in Seattle spit them out, I found out last week), but they exist.

We also have/had a 50c coin, but it's huge and I believe out of circulation these days.

[watersb]

The genius it took to design a $1 that was basically indistinguishable from a quarter...

[MrMorden]

Casinos use the half-dollar to pay out a blackjack.