The skins:
Crimson Akali
Unchained Alistar
Reverse Annie
Spooky Gangplank
Judgement Kayle (unavailable)
Deadly Kennen
Leopard Nidalee (unavailable)
Haunting Nocturne (harrowing 2011, unavailable)
Myrmydon Pantheon
Royal Shaco
Riot girl Tristana
Demonblade Tryndamere! (legendary)
Aristocrat Vayne
White mage Veigar
Tundra hunter Warwick
Imperial Xin Zhao
Sold for 10 EUR!