Bunnies....those cute little bastards

A good friend of mine is trying to get rid of a serious bunny issue.  She plants, they munch, game over and bunnies win.  My mother in law suggested putting carrots all around the plants so that the bunnies munch them and not the new seedlings.  I thought that sounded like a great easy, cheap way to deter the bunnies.  She said it worked great....anyone else think it's worth a try?