As some of my fellow APUGers may have read recently, I bought a Cambo SCX monorail view camera with one lens board. Trouble is, I have a few lenses I want to use, and I found it a bit of a pain to constantly swap lenses onto my one board.
So, I made three boards out of foam core, using a pencil, an x-acto knife, a pair of pliers to flatten the edges of the boards, and a ruler. Oh, also flat black spray paint. Attached are pictures.
I am surprised that they are light-tight, but they are! The lenses are, clockwise from the top right, a Tominon 105mm f/4.5 in a Copal shutter (in the Cambo recessed board), a Bausch & Lomb Rapid Rectilinear with a focal length of about 140mm (f/8?) and a Kodak ball-bearing shutter, a Rodenstock Eurygon 35mm f/4 in a Prontor shutter, and a Repromaster 150mm f/9 process lens in barrel. I'm planning to build a guillotine shutter for the process lens.