Quintain

 If you ever wondered what this strangely named item was called, well, now you know.

Used for horse training by jousters in medieval times. It was also used by foot soldiers for practice, and later it was played from boats as a game on the river Thames (England).

You can find this 3D Model here on CGTrader

A sandbag or other heavy item was hooked to one side and a shield, wooden board etc on the other. The object was to hit the wooden board with a jousting pole.

The counterweight would give the hit some feeling and prevent it from spinning out of control.

Great video below gives an example of the quintain in use;