Any other uses for Orange Essence

So, I nearly own every skin in the game that is available to purchase or receive (less than 40 to go), and I've got 30k orange essence still sitting there in my loot tab. I'm not going to have any use for the orange essence once I own every skin.. Is there something that can be done to convert that into something that can be used? Like maybe convert it into blue essence in some way, or? That's all I can think of right now.