Some Original Ideas...

How about:

Boo-Lu (Ghost Lulu) Carnival of Chaos Caitlyn (Crazy Circus Cait) Chef Darius (with a big chefs hat and butcher knives) Punk Rocker Garen (complete with shredder guitar) Jax-O-Lantern (with like a pumpkin head ^_^) Tron Lux (u know what to do, its awesome in my head) Marshmallowman Malphite (have to work on the name but like the marshmallow man from ghostbusters) Bounty Hunter Miss Fortune (with like Star Wars esque gun n such) Dragonslayer Master Yi (you could do all kinds of stuff with this. epic armor and soul calibur like sword) Banshee Nami (would have been perfect for halloween) Mt. Olympus Ryze (like a Zeus style ryze, and ryze needs some new skin, i mean come on now) Sivir Skins (such a popular champ, and her skins are horrible. I mean, there is so much you could do with her. Outback Sivir with a cool ass hat, and boomerang, croc teeth in there somewhere, and a hot outfit. Superhero Sivir with like a blade shield...all day, ideas, but frfr, we need some new skins for sivir.)

And while youre at it, could you make like some skins that are cheap that dont sell well, so at least for those of us who do aram n stuff, we can pick up a cheap skin every so often for rarely played champs