Something that generates a continuous income(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "money-spinner" in a sentence
"Given how superficial the fashion world can be - and how cynical - it could be that Galliano's very notoriety makes him a short-term money-spinner."
"In my experience, those who insist that fashion is a fickle money-spinner are the same people who at dinner ask a million questions about designers, the front rows at shows and I kid you not whether I have seen Kate Moss in her knickers."
"They have simply been identified as a new money-spinner."