Of course, if you want to do this in any volume, it takes quite a collection of both containers and silk flowers. My husband was kind enough to build me this wall of shelves in the garage (right). And he usually manages to bite his tongue as the scene gets more and more chaotic and spills over into the basement -- not to mention the kitchen, which becomes my washing-and-arranging workroom one night a week.
But I guarantee that it's worth it. My elderly friends look forward to their new arrangements each week. And between visits, they're reminded that someone is not only thinking about them, but is making something special just for them.