Summoner Icons realating to champion mastery

I think a cool concept to add into the game would be to add summoner icons into the game that a player could get if they have a high enough mastery for a certain champion.

For example, someone who gets 100k mastery points on Yasuo would get a special Yasuo summoner icon. (It doesnt have to be 100k, its just an example)

I think this would be kind of a cool little thing that players would find enjoyable