Any Katarina Skin besides High Command Galio... oh you meant Skins? All of his, I guess. Hell, I've seen more URGOT players with skins than Galio. Sejuani - second verse same as the first Any non-Riot Girl Tristana skin Any Nasus skin besides Pharaoh Any Renekton skin Recon Teemo Hired Gun and Jailbreak Graves Most of the limited-availability skins (Halloween, Christmas, etc.)
Wut, half of these skins are incredibly common, you must be new not to have seen Tristana skins, hired gun graves,Kat or Nasus skins.