A ball full of finger holes that is incredibly easy to catch, captivating to hold, and safe to throw. Shiny, Smooth, Flexible, Durable and virtually Indestructible — Oball is the ideal ball in every situation., One Perfect Sphere and One Incredible Ball. The Oball . . . It's Catchy. Rhino Toys is a young toy manufacturing company based in Santa Cruz, CA. It was founded in 2001 by David Silverglate, a toy inventor, and his wife, Suzanne.