I Know i must not be the first to suggest this idea, but might as well post it.

Darius and Draven are famous brothers, so why not make them skins to reflect on other famous brothers? you know what im talking about!

Mario and Luigi, its perfect and you guys know it. you can even have the famous mario jump sound whenever Darius ults and dunks people... picture it guys. Perfect.

So im asking the LoL community to plz rally and demand the skins that are completely needed!