I came across this video yesterday and did these exercises with a 1 pound club. They're using 5 and 10 pounders, that's too much for me right now. The exercises felt pretty good though. You really feel them in your upper back, back of neck, shoulders, and armpits. If I don't have any flare-ups, I'm going to try to work my way up to a 5 pound Clubbell soon.
http://www.youtube.com/watch?v=MOZyxr9AkUw