I can relate. L's not moving offices, but she's going to redecorate it taking out bookshelves, a desk, artwork, and maybe her chair. And she's adding at least a couch. She wants her room to accommodate a lot of people for when they do group meetings. And they have someone else designing the space! I told her I'm not bringing back any of her things until I know they'll have a home.
I think lighting a candle is an awesome idea. L wants us to do an extra session or a longer session to say goodbye to everything that's leaving. I don't know how to do that either.