Abstract: A curve ball is provided by a sphere having a non-perforated outer surface formed by a pair of hemispheres joined at an equator and having a pole axis extending through the center of the sphere perpendicularly to the plane of the equator. One of the hemispheres has at least one arcuate groove. The ball curves toward the groove when thrown in a direction along and coincident with the plane of the equator and spinning about the pole axis.

Abstract: An aerial game projectile useful in batting and throwing games is defined by a generally frustro conical body having closed ends and a side wall formed externally with a series of flights which extend generally longitudinally of the projectile on a portion thereof. The projectile is constructed and arranged to be thrown or launched in motion transverse to its longitudinal axis to simulate the curved flight of a ball.