Eagle Pose - Garudasana
Another pose for those pesky shoulders.
Extend your arms out to the side and swing them forward hooking the left elbow into the right elbow. Press the right elbow (lower arm) up and the left elbow (upper arm) down. Try to clasp your hands or clasp your wrist or whatever you can reach. Arms should be at chest level. Hold 30 seconds. Release arms and rest for a bit. Raise arms again and swing forward doing reverse; right elbow hooking into left elbow. Hold 30 seconds and release. Repeat once or twice more.
In the classic pose you also cross your legs in the opposite pattern so if your left arm is the top arm, then you would bend your knees slightly, cross your right thigh over your left thigh hooking the right foot around the left calf ideally balancing on the left leg. Needless to say, do what you can.