Abstract: An automobile communication system is provided for communicating with others by displaying operator selected or input messages on a display mounted in the rear window of a vehicle. The operator may select messages on a keypad or by voice commands received by a microphone mounted in the vehicle. The system may include predetermined messages and may be programmed to include additional messages for display.

Abstract: An apparatus for use in training formations in team sports such as soccer or hockey. Players train while connected together by selectable lengths of cord attached to belts or harnesses worn by the players. This encourages the connected players to learn to maintain a desired team shape and distance. The connecting cords preferably have some elasticity, to prevent jerking as the cords tighten responsive to movement of the players. The belts or harnesses also preferably have some elasticity or “give” responsive to pulling on the cords.