FEATURE REQUEST - Option to select a random skin if we own multiple skins for a champion

I own a lot of skins, over 300. This obviously means that I own multiple skins for each champion. I try to rotate through the skins I own, but if I had the option of selecting a random skin, I would use it every single time. This shouldn't even be difficult to implement. It just randomly selects a skin from the available skins that I own. Many other games already do something like this, so why doesn't LoL?

For example, I own every single Amumu skin, and would love the option of just having "Random" selected so I get a random skin in game each time.