Oh and I was so happy once I realised the 3d models I've had for awhile actually contain some helmets and armour pieces I hadn't noticed before. :3
Would love to see somebody make their own thing with these.
Feel free to use them, no credit necessary.
Edit: whoops, didn't mean to submit as a print. :\
Credit for the models:
Thanks to 'JakeGreen' for the Spartan III model.[link]
The original models / textures belong to Bungie, Microsoft Games Studio and 343 Industries.