💰 Money Bag
A tightly filled moneybag with dollar sign. Used very often in well-known comics, such as those of Scrooge McDuck or the Beagle Boys. Caution! If the emoji is used, the conversation is about money.
💵 Dollar Banknote
The dollar is currency used in USA. Most platforms display a generic dollar image but the Apple version has a one dollar bill.
💲 Heavy Dollar Sign
Not to be confused with the Dollar Banknote, the Heavy Dollar Sign can also be used to denote cash.