One of the better machines, made in 1937 by the Pacific Manufacturing Corporation, was called Mazuma, a word I'd never heard before. The ad, meant to entice arcade owners to buy the machine, reads as such:
"Mazuma! BIG Mazuma! Stacks and stacks of glittering coins for you. Coins that pack up big cash boxes...overflow into cabinets...pour out like jackpots when you make your collections! Mazuma means Money to you!"
I went to the OED and, yes, Mazuma is slang for money.
I also found a great line from B. Burgundy's Toothsome Tales 33: "It came to pass that he annexed himself to a mammoth mass of mazuma."
So, if you're looking for a magician's name or a comic book villain, I offer The Great Mazuma.