DIY Cinder Block 'sofa': TI love how this cinderblock sofa almost takes on a kid-like quality. It's like it's built out of legos! I'd probably toss a cushion across the bench seat, but I love the plants organically growing out of the back.
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.