Skin boost shoot should give you a permant skin....
To be more specific;Make a tier system where you spend x amount of RP and you get to keep a skin from the lists of champs and skins you have played with in aram.Im not saying make it cheap and easy its already 95 rp,so how about after like 25 aram skinboosts in one season per say you can pick one skin,as a reward for being generally a "nice"player.just a thought i had while playing.imagine how many times streamers could do aram with their viewers and such and help the community would be a fun time for all and people would get a skin out of it eventually