A pointing device that is ergonomically designed is shown and described. In a preferred embodiment designed for children aged 2-6, a relatively large ball is provided in a housing which has a gripping area or handle for each hand of a user, a portion of the ball extending from an upper surface of the...http://www.google.fr/patents/US5990871?utm_source=gb-gplus-shareBrevet US5990871 - Ergonomic pointing device
