Woodland sculptures: carefully groomed moss art in the Lost Gardens of Heligan (England). Side note: Moss obtains nutrients from the air because they have no true roots. Plants require nothing more than shade, acidic soil, and adequate moisture to flou
Garden wall wheel - a stone wall wouldn't look good with our current house but this is a neat idea! I bet this could be incorporated into the wooden fence I want, and the wheel painted an accent color like blue, white or silver :D
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.