headband effects

So we got 2 more headbands in the CS, and they both have effects when worn with something else, but I can't figure out what that something else is. I know that one of the previous headbands worn with one of the kimono overalls (the manly one) and kimono sandals gives you this purple effect behind your character, but that's it. There's 4 headbands, and only 1 of the 4 actually has a full set. What sets are the other 3?