You know that old truck sitting in your yard? Ok, maybe you don’t have an old truck, but odds are you can get part of one to use at a local junk yard for minimal cost (or maybe you know somebody who would be happy to let you have one for free just
DIY - Homemade Gabion wall ie rocks encased in wire baskets and used as a retaining wall - creates a dramatic feature in a garden. No directions on link. Nice someone figured out how to landscape with river rock. I swear they grow!