New Featured Gamemode/skin

If you remember the event where everyone got a head. I'm thinking that they should do an event where the champion can where mask, not the big head thing but actual mask the represents other champions by trying to exhibit each champions key features. but in a mask or a onesie. Cosmetically I'd just be cool to see, like a champion mash-up. But you could also create a game mode to go with it, it'd likely be a PVE event but for how it works, realistically speaking, the idea seems cool, but difficult and/or meaningless.