Something like that, although I'd settle for a sugarloaf as well.
Great helms are relatively simple to make, Just a cylinder of metal with eye slits and a few ventilation holes. They were used around the times of the crusades, so High/Late Middle Ages.
This, coupled with a tunic that could be worn over chainmail (I know, the toga), would make for a monumentally epic crusader outfit.
I also envision a more ornamental version that could be made out of silver+gold and would give some good stat boosts.
I am king of spewing dumbass ideas, aren't I?
but the great helm is awesome...
