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.)







































PD: if it writes, it should break your fingers :P but still awesome!
http://www.gluesticksdirect.com/servlet/the-121/Copper-Metallic-Colored-Glue/Detail
Looking at the piece from the hairclip in the last photo, I'm guessing it's plascit painted to look metallic? A real metal piece would be fairly easy to bend to conform to the curve of the pen. A plastic piece could possibly be warmed up with a heat gun (or a good hair dryer and lots of patience) so it too could be bent to match the pen barrel.
A clever and creative piece here!
another easy steampunk-type pen is a simple fountain pen =) But it is harder to write with of course.
I'll probably make one or two mods right away!
Win Guy