UFO Corki, Lollipoppy and Kitty Cat Katarina.
Happy Elf Teemo
Also have Riot Nasus, Graves, Halloween Nocturne....
and thne snowmerdinger, christmas tree maokai and toy solider gp among with a few legacies.
not much =[
edit: PAX Sivir
Riot Nasus or PAX Sivir
oh and missed my Mistletoe leblanc
Huntress sivir, Riot singed
Don't think I've ever seen someone else using it
Cipher Pol 9
Sonoran Kog, Nightmare Cho, Frozen Shen, Shamrock Malphite, and Festive Maokai come to mind
EDIT: just remembered K9 Nasus
Super Swag Bot
I think the rarest one I have is Workshop Shaco.
emerald taric, nightmare cho, and shamrock malphite.
although those arent exactly "rare", just discontinued.
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