Kanzashi is the general term for hairpins, I believe, but I don't know the specific names for the individual pieces.. if there is any.
Masamune Date - Sengoku Basara
Sōji Okita (Tsuiokuhen/Trust & Betrayal OVA) - Rurōni Kenshin
*~Next con I'm attending~*
FIN Kitacon (1-2 March 2014)
SAT Keisuke Sannan - Hakuōki: Shinsengumi Kitan
SUN Gin Ichimaru - Bleach