More "Little Knight" Skins!
I like the Little Knight
Amumu, and thought they could totally give more yordles the Knight skin look so they could tie in their own skin line and team. cause you got Poppy, Amumu, Kled that have knight skins
I'd most like to see Little Knight 
Rumble. The body could be a tower, and him in a little helmet. Sword on the melee hand and a dragon head on the flame spitter.
and the 5th one of the line could be like teemo or Kennen for the ranged bot lane filler some how
Or you know just the rumble skin would be fine
"Hey Guys! Mind if I bring my dragon along?"
"Oh no, it's a Real Marksman!? Welp looks like it's back to the asylum for me! ;P"
"...I'm actually a mage anyways.."
"Young'uns these days! Back in my day, we rode dragons into the fray! Not that little house pet Tristana has NOooo, these were Real Dragons, the kinds that will make Dragonslayers push out 
s!"