A Contest?

I was trying to come up with a few ways to increase my fan base on my Facebook page. I was thinking of a contest....for every person who brings someone to my page and they "Like" my page that counts as a point. The person with the most points after a certain date would win. Even people that just came to the page and have just "Liked" it can begin to participate as well. I would like to set a goal of 500 "Likes". I was thinking the prize would be a free pair of earrings.

What do you think?