An animal toy is provided constructed from a latex or natural rubber material and formed into a ball. The ball is formed of an aggregate of particulate material that are bound together to form a substantially non- hollow construction. Pieces of latex are joined together to form balls, and the balls may be pressed together and constructed by hand or, alternatively, pressed into molds. By constructing the balls by hand, no two balls, even balls of similar size, are identical. Each ball has irregular outer surface that forms a variety of resilient protuberances that provide beneficial oral hygiene effects when chewed or rubbed against the teeth.