A seat cover comprises a sheet of biodegradable material wound about itself so as to define a hollow core, with the hollow core having an interior perimeter sufficiently large so as to fully encompass a toilet seat about a trans-axial perimeter thereof when inserted thereover. A seat cover also may comprise a plurality of biodegradable balls connectedly associated with a substrate, wherein the substrate has substantially the shape of a toilet seat. A method of making a seat cover comprises winding a sheet of biodegradable material about an object having a trans-axial perimeter about the same size as a toilet seat, wherein a wind partially overlaps a preceding wind such that winding progresses in an axial direction along the object with each successive wind, and removing the wound sheet from the object. A method of making a seat cover also comprises connectedly associating a plurality of biodegradable balls to a substrate along an exterior surface thereof, wherein the substrate has the shape of a toilet seat.