Acquiring Orange Essence

Hello Summoners... Have you acquired bad ass skins from mystery chests, but can't unlock them because of the lack of orange essence? Seems the only way to get these skins unlocked, is by trading in a bunch of the skins you'd like to unlock as well... Kind of a bummer, wouldn't ya say? So... That being said, should Riot implement another way of acquiring orange essence to unlock the skins you've been waiting forever to upgrade into a permanent skin? Potentially, one could acquire orange essence from achieving an (S-,S,S+) rating as a bonus for exemplary game play. If you have other ideas on how Riot could implement earning orange essence, it would be appreciated! Hopefully we can persuade Riot into helping out the community, with this newly needed addition to the game.