have you ever considered "upgraded looks" for mastery unlocks
So i had this idea where if you get a certain ungodly amount of mastery points (500k,100k) you can choose to pick the "upgraded" look of the related champ of those mastery points
take for example if you get the upgraded look of
cape looks more regal
cowboy hat
gloves (or mask)
facepaint
A suit (riot where is that suit skin)
(okay the last one was a joke)
note that all of these would only be an upgraded look for their DEFAULT skin so it wouldnt be the biggest hassle just small little changes that wouldnt make the biggest impact visually to show "hey this champ means a lot to me i got history with em" plus i have always been interested on if "riot could ever add one small thing to every champ they to visually what would it be?"
TL;DR if you hit a buttload of mastery points you unlock a small piece of gear for that champs default skin