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.
Looking for an out-of-the-ordinary water feature? If you don& have a slope for a waterfall and a fountain won& do, consider a & shower& structure like this. This contemporary design would work well in a high-tech or zen garden.