Step A: Squat low. Place your hands on the ground, resting your triceps on top of your kneecaps. Tip forward, lifting your feet off the ground and into a balanced frog stand. Hold for 30 seconds. 
Step B (advanced pose): Extend one leg in back of you, keeping it diagonal to the floor, while elongating your neck to maintain balance.

Step C (advanced pose): Straighten your elbows, lift your legs, tip forward and try to press up into a handstand.
Benefits: Functionally strengthens entire shoulder girdle. Builds arm stamina and strengthens core.