Panty and Stocking is a good choice!
Miku and Gumi from VOCALOID in their Matryoshka outfits.
Rei and Asuka from Neon Genesis Evangelion
Maka and Tsubaki from Soul Eater
Noiz [DRAMAtical Murder]
Okita Souji [Hakuouki]
Riku [Kingdom Hearts II]
Yusei Fudo [Yu-Gi-Oh! 5Ds]
Chrome Dokuro [Katekyo Hitman REBORN!]
Armin Arlet or Levi [Shingeki no Kyojin]
Rin [Togainu no Chi]
Lucina [Fire Emblem Awakening]
Aqua [Kingdom Hearts Birth by Sleep]