"Wine shops usually toss their wood crates, so ask to take some off their hands and stack them to make charming insta-shelves. Fill them with detergents, cleaners and towels." — David Bromstad, Color Splash
This passage way made with the same shipping pallets could be perceived as a dual natured pallet wood creation. This is a decorative measure, and also a protective measure as well as it would prevent us from some tiny harmful worms and bugs that might cause irritation and inflammation. And the wooden planter is even better than that.