It is a game for kids to develop their imagination.

As in this picture, the part [cow" is used to draw a cow. Challenge your partner to draw the whole. This method allows creative expression, word recognition and challenges the painter to use their imagination. It is better to play on magnetic recepitive whiteboard that can hold magnetic accessories. Also you can do not need magnetic accessories, but need hold the part all the time.

You can make magnetic accessories by cutting the fridge magnet. Or buy a whiteboard magnet sheet that easy cut to any shape, reusable and exercise partner's DIY ability.