Hello i only want to share my inofrmation with you :
These are the limited skins which are able to buy in following months
October 2013
Mundo Mundo
Pumpkinhead Fiddlesticks
Kitty Cat Katarina
Lollipoppy
Zombie Ryze
Nosferatu Vladimir
FrankenTibbers Annie
Definitely Not Blitzcrank
Bewitching Nidalee
Haunting Nocturne
December 2013
Snow Bunny Nidalee
Workshop Nunu
Happy Elf Teemo
Earnest Elf Tristana
Old Saint Zilean
Re-Gifted Amumu
Santa Gragas
Reindeer Kog’Maw
Candy Cane Miss Fortune
Ragdoll Poppy
Nutcracko
Silent Night Sona
February 2014
Vancouver Amumu
Team Spirit Anivia
Ice Toboggan Corki
Union Jack Fiddlesticks
The Mighty Jax
Festival Kassadin
Whistler Village Twitch
Curling Veigar
June 2014
All-Star Akali
Goalkeeper Blitzcrank
Striker Ezreal
Red Card Katarina
And everyone who buy one of these skins get a new icon :
greets Joshy'
If i was able to help you , than you an thank me