[Skin Idea (s)] CupCake Ziggs.
Cupcake Ziggs, The explosive baker! The satchel bomb would be a cake. The sound of each bomb would be the squishing of a cupcake on the ground sound. If you can imagine that sound.
(Plus there's more :D)
Alien Invader Gnar: Cute little violet monster, he would have little antennas. The boomerang would be Phaser-esqe, Mega Gnar would be a full blown Alien, Red skin, two sets of arms, and throws UFOs at people.
Pool Party Rek'Sai: (SHE'S A LAND SHARK)
Redeemed Diana: (Would pair with Banished Leona) sun theme, yellows and oranges. The sword would change its shape, taking on the straighter look of Leona's or keep the crescent shape, smoothing out the tips, change the moon on blade to a sun (obviously).
Banished Leona: (Would pair with Redeemed Diana) lunar theme, shield takes a more rigid shape, showing a moon in the center. Train would be a solid fabric, a silver and dark grey/blue. Her crown would change to a more spiral theme, with a crescent moon in the center. (No idea on the sword)*
Beekeeper Lulu: kind of self explanatory. She wouldn't wear that ugly net- thing but her fairy would be a fat little bee. Colors would be yellows, golds, black, oranges.
Wreck it Vi: kind of demolisher look. Gloves are yellow or black, kind of beaten up, not much else on that idea yet.
Forsaken Elise: could be a Halloween skin, dark greens and blacks. Very rigid legs, scary look. I don't know how to explain the idea. Just think scary.
Gingerbread Teemo: kind of self explanatory. Entire skin made to look like Gingerbread cookie. When you hit your W, he laughs as he is running away. The mushroom would be a small Gingerbread house. The dart gun would be either a peppermint stick or licorice.
Earth rune Thresh: think Earth rune skarner. Those colors, the lamp would be like skarner stinger. Vines everywhere.
"Lost Egg" Amumu: easter skin, he's that easter egg that everyone missed during the hunt. Pastel colors.
Warden (or jailbreak) Miss Fortune: greens and neon. Not much else there yet.
Snow (insert witty word here) Karma: just a snow down skin. Her outfit would be a winter jacket that almost looks like a robe, light blues.