Abstract: An aerodynamic toy is provided with a circular central portion having a center surrounded by a substantially flat circular surface, a rim circumscribing the circular central portion terminating in a given plane, a surface of curvature extending from the flat circular surface and curving downwardly to the rim to form an outer convex surface and an inner concave surface and a lip concentric with the rim and extending from the inner concave surface and terminating before the given plane.

Abstract: This invention is a disc-type, aerodynamic toy. This toy consists of a fabric center which can be altered by the owner to varying thicknesses and degrees of coverage for aerodynamic purposes. The fabric center is bounded by a rim into which the center is pressed. A smooth convex surface surrounds the center and rim. The smooth convex surface is bordered by a lip which is turned inwardly toward the center of the toy. The smooth surface combined with the heavy center of varying thickness, and degree of coverage, makes the toy extremely stable, a toy which the owner can alter to suit his or her aerodynamic requirements.