Maybe Settlers of Catan for the board game clue? Ben makes the guys play it for his bachelor party... (I still have two seasons to watch. Maybe the Cones thing hasn't come up yet. But if so, maybe the clue should be more precise?)
Just saw the Cones episode. Still think you could change the clue for "Board game invented by Ben" or something (although I realize now that Catan might be kind of a stretch).