Ok this is a example of fiddling while I am watching a movie on the computer. All of this is straight out of my various bits bins, mostly the wooden shapes bucket. Michels frequently puts all their wood bits on sale, when I catch one I buy all the interesting ones I find, mostly cubes (with a little paint instant cargo). The metal bits are from the Maatac line of tanks now by Monday Knight Productions, who at conventions have a large chunk of their lines out in bins where one can buy bits by the ounce. Add a handy big bottle of Aleene's and things happen.