First, one must get out of their vehicle in a game world, then go to the object they wish to carry, such as a Bawl in Spiral Mountain, or a ball in the Jiggoseum, then press Start and select "Change Vehicle". Before the screen whites out, they will have a brief moment to pick up the item. When the vehicle appears, they will be in it, holding the item. There is no need to hold the right trigger to hold the item when they're in the vehicle. To drop the item, simply exit the vehicle. If the vehicle they're inside has too much power, and is too fast, they may accidentally drop the item.