There are loads of lottery plugins out there, but none that support PlayerPoints. I'd like a plugin where staff can run a lotto with '/lotto start' and the lotto will last 10 minutes (configurable). During this time players can enter the lotto with '/lotto enter' and this will cost them 1 point (configurable). Once the 10 minutes is up a player is selected at random and they take all winnings. Eg if 10 players enter they win 10 points.
No need to make a new plugin, you can just ask the already existing plugin's developers to add this to theirs.