In the Kobold's Cave
, I used black plastic to cover the walls. This worked, but was highly reflective because of the shinny plastic. I wanted something darker. Covering canvas happened to be on sale at my favorite home improvement store, and in the past we have painted a canvas black so it could be used as a black light paint surface. This worked out well, so I decided I'd try painting canvas for the wall coverings. Here one of the canvases has been painted and hung. The painting is a little patchy, but I do like the way it looks.
The Internet was installed at the house today, and most welcome.