Having outlived their usefulness for the sowing season, the spinning top seeding machines are repurposed as the pendulum-like blade of a harvesting and weeding machine. The caretaker fixes a disc between a pair of rotating metal armatures, then sets it free to roam the landscape in search of weeds. It touches the earth lightly, cutting above the ground; the machine passes by frequently enough to make it difficult for weeds to put down roots.