Winnie the Pooh Volibear
Give him yellow/orange fur, a red shirt, black eyes and a honeypot and we're good to go. Obviously, a different name must be used, like King Rammus is Bowser or Headhunter Rengar is Predator.
You can make a collection:
Tigger Rengar Piglet Teemo Eeyore Alistar Christopher Robin Ezreal
It would be awesome.