Quote from ForexForex:
How about this?
A trader is broke after blowing out a few accounts, his last line of funds is cash advances from his credit cards. So his plan is to load up on cheap QQQQ and DIA puts just days before expiration and then cause mayhem in the NY subway by planting numerous bombs. All he needs is a 3% panic selling and those puts could go 10x.
I think it's a good start of a plot that I don't think has been done before, just have to come up with a good twist for the ending.

Quote from nutmeg:
How about Goldman Sachs decides to securitize Obama's twitter following while JP Morgan securitize's the Queen of England Face book.
The story takes place on a cruise ship. Dick Fuld is an Elvis impersonator and Jimmy Cayne is the captain.
First stop is Dubai.