I saw on a custom server they had a "version" of wings, which was like an aurua/smoke around the character. I found it pretty cool, cause instead of wing look it look like travleing fog. And I was thinking they are pretty easy to make (probably just some transparent brushes and smokey stuff, so I could say different color smoke for each type of job
Red -> swordsman
Blue -> Mage
Green -> Archer
Purple -> Thief
White -> Merchants
and even go as far as patterns