One thing I miss living on a boat is having a garden. I took empty plastic milk cartons and cut the top off, put wine corks in the bottom then soil and plants. I hook them to the lifeline with a carabiner where they are gimbaled. The corks prevent too much water from entering the soil (I didn’t want to put holes in the bottom because I didn’t want mud in the toe rail). My plants are happy and I have basil, mint and rosemary fresh anytime I want them.