Currency

The "Dollar Bill" is a currency used in Beach City.

"Pilot"
Steven uses this currency to buy donuts for the Crystal Gems at the Big Donut.

"Cat Fingers"
Steven buys a doughnut and surprises Sadie and Lars by letting the cat finger give them the buck.

"Keep Beach City Weird"
Ronaldo Fryman tells Steven his theory about the symbols printed on the bills. According to Ronaldo, the snake on the right side of the dollar represents the Snake People. The diamond on the left symbolizes the Snake People's "underground mines... or their sharp teeth." Later, Ronaldo revises his theory of the diamond's meaning: "Polymorphic Sentient Rocks" (Which, unknown to him, are the Crystal Gems).

"Watermelon Steven"
Sadie suggests Steven should sell his Watermelon Stevens to Beach City residents to earn money.

"Alone Together"
Stevonnie buys two doughnuts for herself (Steven and Connie) to eat.

Trivia

 * In addition to the one dollar bill, two and three dollar bills are depicted in the show.
 * The snake on the left side of the "Bills" draw inspiration from the snake on the Gadsden Flag and the snake from a political cartoon by Benjamin Franklin titled "Join or Die."
 * The snake on the "$1 Bill" can also be seen on coins used in Beach City.
 * The backside of the dollar bill resemble the reverse side of the U.S. one dollar bill.
 * The dollar bill confirms Beach City is in America.