Birdhouses | GardenDrum would be great for lake house.
Chicken feeders. Brilliant! Check out this site. Lots of cool ideas.
Bunny in the flowers
Plant lemon seeds. Lemon leaves smell so good. @ Pin Your Home
Bees for your garden, and for the earth.
You can grow carrot greens from discarded carrot tops.
Over-the-Door Arch Trellis
Sweet peas climbing an obelisk ~ purples