From The OP:
Hey! I'm still here! I've just been busy with Christmas and the traveling that went along with it.
Thanks for all the suggestions. Just to let you know, I am not wallowing in grief over my Mom's passing, and I DO pick up the uke occasionally, but only for a few minutes at a time. The instrument doesn't bring back debilitating memories or anything like that. I just don't really have many "excuses" to pick it up and play for people these days. Even my five grandchildren have reached the age where they won't sit and listen, but will keep tugging the danged thing out of my hands and pretend to play it!
There is a local ukulele club that meets once a month, but based on the videos I've seen of their jam sessions, most of the members are rank beginners. I'm no virtuoso, but having played for about ten years, I am a little more advanced than that.
I like the idea of children's hospitals and will probably look into that one to see if I can do it while I am still working 8-4 every day.
Again, thanks for all the suggestions and support. Happy New Year to all!