as good as poisons might work, there is a downside... the mice sometimes just store the poison around the camper, or if they're anything like some of the mice at my cabin, they love to "expire" inside the walls, making for a rather unpleasant odor. make sure u dont poison AND get a cat, thats no good. i like the peanut butter bucket idea, and you could also add some floating feed in there like sunflower seeds or in-shell peanuts to get em to go in there. hope this helps