I like the stark, minimalistic, practical design for 23rd ct Vulcans -- it seems to fit their philosophy. And while Spock does stress upon occasion that the appreciation of beauty is not against the principles of logic, it makes sense (to my mind) that all the really beautiful pieces of art they admire and keep around would be pre-Surakian antiques (like the statue of the fire deity in Spock's room, though "beautiful" is a matter of taste there), because I have trouble believing art can be created without emotion. I also like the idea of decorative weapons. Overtly, a reminder to themselves of a past they don't want repeated, but also, I think, though more secretly, an outlet (or sort of focussing object?) for the part of their souls they normally repress, or maybe a clue for those around them that logic calm isn't all there is to Vulcans. ";-]