Abstract: A method of making tennis balls by a single core part and fabric piece bonding step is disclosed wherein an assembly of core parts, including a pair of hemispheric core halves, and fabric cover pieces, including a pair of figure eight fabric dumbbells, are assembled to one another to a subassembly of core parts held together by a dried but uncured first curable cement, the fabric pieces are held about the core subassembly by a second dried but uncured cement and a third curable cement is provided between the fabric pieces to form the exterior ball seam. The assembly of core and cover parts and pieces thus held together by the tackiness of dried but uncured cements is then placed within a snugly fitting mold and cured in the presence of heat to bond the core parts to one another, the fabric cover pieces to the core and the fabric piece edges to one another to a completed ball.