Hand-To-Foot-Pose aka Padahastasana is not only a great hamstring stretch but also a beautiful wrist stretch. Once in this posture you can play with wiggling the toes onto the wrists creases for an added massage value. It is also a mild inversion as your head is below your heart so you will get the added benefits of extra blood circulation to your brain:)
Modification and Tips:
For Beginner Yogis or anyone with tight hips or a tight lower back bend the knees deeply. This will help you to slide the hands under the wrists. After you hands are completely under your wrists with the toes along the wrist creases then you could straighten your knees to your degree of comfort.