I built this to loosen and pick up soil and small stones. It is not yet complete. Still need a bucket to hold the soil. I used my Tiller as the power unit. The shovel is made from 3" galvanised water pipe which I cut in halve with a plasma cutter. I weld the pipe in a star form to a 3/4" roundbar. Attached the shovel to my Tiller and away I go. I work rough and jump all over the place. It did loosen soil and small stones, and pick it up. I am planning to modify it by combining the 2 shovels to make one, and build a frame with wheels that can hold it, then using v-belts to connect it to the tiller. I must also still build a bucket to collect the soil. The photos show the half completed shovel and the shovel connected to the tiller.