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.
Dramatic stacked wood stump backdrop for wedding ceremony altar. Maybe instead of an arbor, the wood stumps could define the ceremony area. We couldn't use candles but led lights if twilight for soft glow