Reuse an old tree to make a log pathway in your garden. Good use of "yard" trees and other wood that can't be milled; works much better in climates without termites. Good drainage under the log rounds will make the path last longer.
not pretty but functional chicken chunnel or tunnel from barn to free range areas to protect from predators. My worst predator is coyote, who hunts as soon as it begins to be grey - best thing is teach them to get inside before sunset