This is so simple a mod that I'm almost embarrassed to post it, but it might be of use to someone out there. I made it for myself, just so I could look a little more wizardy, but it seemed a waste not to share it.
To install, just drop into your Elemental/Mods folder.
This little mod simply adds a number of hats to the game, for use by characters who want some head protection, but do not want to wear a hulking great helmet. Statwise they're pretty much just the regular helms, but with the appearance of a fez, and they will become available at the same time their equivalent helm does. Thus they should have no impact on game balance whatsoever, but will do wonders for your wizard's styling!
The fez is not usually available to every race/sex combination, but after a little testing it looks like it works fine with all of them, provided you don't mind that hats replace your hair, and come with a set short hairstyle coming out from underneath.