The SIGecom Exchanges, an engineering and economics journal on e-commerce, run a puzzle in each issue, written by Daniel Reeves (more on Dan’s awesomeness soon). The December 2011 puzzle asked to find a scheme to pay a lawyer when there is uncertainty in the fruits of their labour, while still taking into account the amount of labour (see here for the complete puzzle).
After 6 months without a solution, Dan offered a bounty for this puzzle, where the award would be a realization of a uniform draw between 0 and 500 dollars (realization given by geohashing). After some extra nerdery to choose the winner of the bounty between Arthur Breitman and myself, I ended up winning $65.14, and my solution appears in the latest issue of the SIGecom Exchanges.
This was great fun; other journals should pick up the idea!