Darth Vader is coming :nailbiting:
Helmet looks good. Interesting project - is it an existing version or a scratch build?
Whatever it is you have a follower.
I have been experimenting with "Flex Seal". I got a small can from an "As seen on T.V." store in the mall. This stuff is amazing, and goes on extremely thing. Great for making rubber looking tires, a coating on the face, or whole head of that model would smooth it right out. I suggest getting a can and playing around with it. Whatever you do, paint a small series of different thickness swatches so you now how long it takes to dry, you wouldn't want a fingerprint on your head. It dries shiny, on paper anyways. I got the 16 oz. can to try a seal a troublesome spot on my roof, in the Winter a water dam causes a minor leak. It cost around $13.00 bucks for 16 oz. I think you could do a few thousand truck tires for paper models with that size. It did not penetrate the paper either.
Liquid Electrical Tape would have a similar effect. It's a little more runnier, but not by much, and also works great for rubberizing, and of texturing paper. It also dries shiny.
Darth's really coming along nicely. I would like to reiterate that you are using far too thick a gauge wire for what you are doing. The wire need not be as thick as the resistor ends. You are only carrying Milli-amps of electricity. You can go down to a local electronic supply store and get a couple of rolls, (Red, Black) of very thin gauge wire. This will make soldering much easier. You can just tin the pieces together. I had an Electronic repair shop for 10 years. If you get the small gauge stuff, you can add solar panels to the base, and tie in a capacitor, and with a 555 timer chip, and small voltage regulator chip make the unit come alive when the cap is charged. If you got a tube of conductive epoxy, you could wire two spots in his hand, and have the LED in the same matching pads, and have a light saber that only works in his hand. The conductive glue would allow you to make paper switches, so when you touch the model in a special spot, it lights up. Lots of way, but use thinner wire, much easier to work with. Coming along very nicely.