What are some good group therapy activities for low-functioning adults (Schizophrenia, stroke, Bipolar)?

I'm running this group with 20 (!) people once a week and am getting low on ideas. Does anyone have any experience with this kind of population? Would you mind sharing what worked? Thanks a bunch!

I am a high functioning schizophrenic and I interact with low functioning schizophrenics at the mental health center. I think the difference between me and them is that they have bought into the taken care of weaker position. They need to be taught to be more responsible. Why not explore their personalities and help them to see that they can be much more than a label. Yes, you heard me right...help them to be all they can be. I bet once they find out about themselves they will want to know more and do more and it will give them something to talk about. How about some role playing to act like the adults that they are. Also help them to see what types of jobs they are suited for and I don't mean meaningless out of the way work. I mean fully optimized self actualization. Help them to learn that they have what it takes to succeed in the real world. They have been low functioning because that is all that was expected of them. I know for a fact that many of them could live much better and independent lives were it not for the brainwashing of overbearing "caregivers" and a depreciating but well meaning medical profession. The best thing you can do for them is to prepare them for the real world because mental health care has gone through many changes and there is no guarantee that help will always be there. There have been instances of facilities shutting down and inmates being forced into homelessness. Help them to see the need to get out from under "caregivers" and on their own two feet. As long as you are looking to simply entertain them you are doing them no good whatsoever. Lead them into a new life and along the way you can have some fun. Let them make plans for success including getting further education and job experience even if it is volunteering, which by the way why not have them do that as an activity. They are an untapped resource waiting to be activated. If anyone thinks that they should just let them remain low functioning then they can kiss my left ***, then my right ***, then my left *** again ad nauseum. They are worth so much more than that and are fully capable of acheiving success.

mindfulness, check out DBT by Marsha Linehan really good stuff there!