Giving Project Cores another function

I spent 50 bucks on this new boxes which was kind of worth but right now I still have 40 Project Cores chilling in my inventory without any proper function.

My suggestion is to give them a possibilty to be used e.g. 15 fusion cores for a normal hextech box with key. It hurts to see this special items in my inventory without being able to do some sick stuff with it.