This winter we had in some areas much snow. To clear away the snow most people use a snow shovel.
The handle of the shovel can be compared to the jo in Aikido. With classic snow shovels (not with a D-handle, see image below on the left) you grip the handle almost exactly as in the case of a jo.
While a thrust with the jo is directed forward, the shovel lifts the snow up and throws it off. The form of the hands and arms is very similar. Therefore snow shoveling is an excellent complement practising with jo in Aikido. You can try out how to exactly hold the shovel and what to do for not getting tired. In this way, the arms develop optimal movements for this type of activity in coordination with the whole body.