-Lei Wulong (his Chinese inspired robes, pants, and shoes would make awesome items for CAS in Soul Calibur. I can think of a few things to make with them for my Chinese warriors. :)
-Heihachi (I always liked his Tekken 2 P2 outfit of the very long hakama and sash. I know they have hakama in the game already but they don't really have the really long ones. So yeah...)
-Ogre (His outfit pieces would be useful to make Aztec/Babylonian/etc. type warriors.)
-Devil Kazuya (More so for his bottom. The whole furry demon lower body (legs and feet claws piece.)
-Marshall Law (Like Lei Wulong, his Chinese Kung-fu pants would come in handy!)
-Anna Williams (Her Chinese dress may be a bit more modern but I think it could pass off for a period dress. Plus, it would be nice to use a stylized Cheongsam instead of always using the Soul Calibur 5 one.)
-Julia Chang (Would be useful in making Native American warriors. They already provided the headdress.)
-Zafina (Would be interesting to use and mix to make Egyptian/Middle Eastern characters. More so on the capri pants and waist sash then the top since it looks similar to the "Dancer's Top".)
-Lili (Like Anna, her dress is a little more modern but I think it could pass off as a European period outfit. I'd love to use the dress the most.)
-Kunimitsu (Be great for a female ninja outfit.)