Arctic Fox Ahri: This skin basically is a frost-inspired skin with her ball being a snowball, her flames be frozen wind, her charm as a heart-shaped snowball. Her look would include large fox ears, white hair, fur on the collar, long sleeved sweater and pants that are both fox-paterned. As I imagine the skin, I see it as an ahri skin with not to much flesh shown much like the arctic warfare caitlyn.
Death Seeker Akali: Her weapons would be a double scythe/sickle paired with black overalls, with a black hood and face mask.her spells would feature dark smoke upon impact, a smoky effect with E, a large black haze with W and whenever she kills a unit, her scythes/sickles or her eyes would glow red
Dairy Alistar: Alistar with cow prints overalls.whenever he casts a spell, a squirt sound would be heard. his passive would cause him to squirt out milk and everyone that gets heald with his E would be showered with milk
Spidermumu: It's popular for one reason. Cause it's awesome. niff said
Rainbow Bird Annivia: Annivia that features bird feathers and her tail would glow like the colors of the rainbow(think Ho-oh) and her spells would be emmiting different array of colors.
Ashevarosa: Ashe in a gastly image of the former queen. Spell effects would include frozen arrows trailed by snow, hawkshot would shower snowflakes down the area. and her Ult would be of Ice gleaming in different colors as it travels accompanied by 2 hawks that spins around it.
Battlebot Blitz: A blitz made from hard metal powered by coals to ensure it lasts in battle. spells would release steam/smoke as they were casted and when W is casted, his whole body would burn bright with heat.
Firelord Brand: Similar to Vlad and his BloodLord skin. Same theme just a more badass looking model, voice and spell effects
Bionic Caitlyn: a half human, half robot Cait with futuristic rifle and an energetic Ace in the Hole
Pre-Curse Cassiopeia: Basically Cassiopeia before the Serpent-blade incident. Feet included.
Cho'Gathzilla: Chogath in a scaly texture with matching building-shattering sound effects
Battlecast Corki: Corki would be driving not his traditional Copter but a Huge Battle Bot. Battle bot includes Mist Revealing Smoke Grenades, Flame Jetpack for daring escapes, An Artillery that would pierce your enemy's armor and a Kick Ass Home Destroyer Missile. *batteries not included*
Lumberjack Darius: Darius in a checkered poloshirt in a dirty overall ready to chop anything that goes his way, champion or tree.
Solari Diana: What Diana would look like if she was chosen as the Champion of the Solari tribe and not Leona.
Bridal Mundo: TPA Mundo was great enough but Runaway Bride Mundo would be better.
Fire Dancer Draven: well you get the idea
Spider Goddess Elise: Armored Elise with most of her skin is covered but would still reflect her "seductress" look. Her spiderform would be and Armored Spider with an emblem. Spells would be accompanied with golden glitters or tiny spiders.
Countess Evelynn: She would have the typical Vampiric Cape, Hood and outfit. Spells would depict spikes that saps blood from it's targets and a new VO.
Hyper Dying Will Ezreal: Sawada Tsunayoshi(KHR) Inspired Skin