Just to toss a few ideas out there for caroling, you may want to look into playing carols at hospitals. Trust me- the worst time to be in a hospital is during the holidays. If you're interested, check with the hospital you're considering playing for first and see what their rules are and to get permission. Senior community villages are another place you could consider playing at. Again, call first and see what the people in charge have to say about carolers visiting.
And to toot my own horn, the pic you see at the top of this article is a headstock topper I made for soprano ukes! I'm making other designs as well and they'll soon be up for sale in my store on Bonanza.