Once dry, turn upside down and roll on a coat or two of white acrylic paint. We used white because we had plenty, and liked the idea of having one bright side to the screen and one plain side. Allow for drying time, giving as many coats as you like. Repeat with each panel.

Now it's time to prepare the trim for each panel. As we had enough wallpaper left, we made a cardboard stencil of a pattern and copied our pattern onto the back of the wallpaper.

Our pattern was designed to fold around the edge each of each panel to trim both sides at once.

Measure out the pattern on the wallpaper and then turn over and spray paint the surface a color of your choice: in our case, black.

Once dry, cut out each trim and attach to the edges of each panel by brushing PVA glue on the back of the trim.

We used PVA glue instead of wallpaper paste, as we needed something a lot stronger to deal with the small amount of surface bonding and with the bends around the edges.