You could rent them on the rent board or possibly trade them into RCI Not sure on how that process works but I'm sure someone will be along to explain it if you are interested.
I have never rented out points but I rented points from a friend before we purchased DVC. I have read of good experiences and only a few not so good. The reservations is under your total control so you are the one who has to call to add magical express and dining plan if renters want to add.
This thread might be helpful: http://www.disboards.com/showthread.php?t=895654&highlight=renting+points