What do you need: Safe and quiet space with a place to move freely.
What can it help for: Increases energy level, movement range;  awakens imagination.
How much time do you need: Up to 10 minutes.
How to do it? 
Imagine you have a ball of energy inside your pelvis. Visualize its size and colour. Set this ball in motion and allow it to affect your movement:
Follow the energy ball anywhere it travels inside your pelvis: around the circles, holes, and arches of your pelvic bones, or moving you through space.
Move the energy ball up and through your rib cage, bouncing off the inner ribs. Let it move around your heart and lungs.
Explore moving it inside your shoulders and out your elbows, wrists, and hands.
Activate inside your fingers, and feel the ball moving—but don’t get stuck in your hands.
Bring it back, through your arms and up your neck, and inside your head.
Bounce from head to tail and back again.
Let it spiral down inside each leg and foot, moving you around the space.
Pause, and notice all you’ve shaken up by motivating your movement through an inner energy ball.
Now toss the ball out of your body and bring it back in. Explore inner and outer, and the transitions between.
Would you like to try some variations? 
If you are doing this exercise with company, at the end you can improvise and share an energy ball with others, giving them energy and also receiving it.