How hard can it be to kill moss? This is one the sorts of indestructible sorts of plants that I need more of in my life (OK, I'm cheating - it's a special kind of preserved moss).
I love this idea from the inspiring new book about house plants from Isabelle 'Balcony Gardener' Palmer. And any gardening project that involves gluing the plants in place sounds like my kind of project.
The book