This is an ancient piece of magic. But still as good today! You show a vase with a lid to the audience. The lid is removed and inside there is a ball, which you put into your pocket. Show the vase empty and replace the lid. Take out a magic wand a wave it over the vase. When you open the vase the ball has reappeared in it. Replace the lid and wave your magic wand once again and when you open the vase the ball has disappeared – and is now back in your pocket!