I'll remember that one! Really strange when you come from the world of Photoshop, to this "crude" world of chemical baths and enlargers... Where "masking" quite literally means making a cardboard cut-out, and sticking it on the paper!
I’ll have to try photographing some guns like other people, I usually save the expense of film for derelict industrial buildings. Then again, I can develop the Ilford HP5 at home, so that knocks down the price.