Two projects that I have had on the go for quite some time now are a couple of helmets from Halo, the Mk VI and CQB. Both are made from pepakura which was fiberglassed for strength, and they are now in the smoothing and detailing stage.
This helmet is very near completion now, and only really needs a little more work with bog, and then a few passes with spot filler. All the raised details where added on part way through construction as they were not included in the pepakura file I used. They were made with 1 and 2mm card, which was coated in resin for durability.
This helmet is not quite so far along as the other, and still needs a fair amount more detailing yet. Details will be added with card as was done on the Mk VI helmet, and the three knobs on the helmet will be removed, a master will be made them molded and cast, in order to get three identical pieces.
I have some images of this helmet in the early stages, after it had been fiberglassed, but before I had started to apply bog.
Both of these helmets are at home so I only get a chance to work on them when I am back visiting over the uni breaks. However while I am there I get quite a bit done on them as I don't have anything else to work on.