Technique for aging the aluminum- I colored it with a normal black sharpie, waited for it to dry, then used fine sandpaper on it. (it worked great, in my opinion.) You can turn almost anything into "metal" with aluminum tape and this technique.
I know it's not that great (partly because of the hot glue residue), but please critique. I'm going to be making many more steampunk things. (I also made a steampunk mechanical pencil, which i think looks pretty good.)