The residents will love it, and some will have stories of their own about sitting with their grandmas, mothers, or friends and quilting by the lantern light.
When I went to where my Mom lived, I brought along a few friends & we made up a few "cheater" panels and sat out and let a few of them do some stitching. We only did a show & tell not a sale so was different than what you'll be up to. It's wonderful that you're giving these special people a "treat" today, hope it all works out well for you.