Sheen stacking

Always a blast watching Ezreal build Trinity Force...then Frozen Gauntlet.

So here's the thought: we have a few different scenarios in which this gets improved greatly.

A) Make each Sheen item have its own unique named passive, allowing an owner of more than one to gain benefit from it. If this is too strong, make the passives stack diminishingly with one another. B) Make it impossible to buy a 2nd Sheen once you have one (or a finished Sheen item) in your inventory already. Even if the moron buys a different component than Sheen first, they have options to turn it into something else, or at the very least save them the money of making a complete item they have to sell. C) Leave things the way they are and add a new report option for "player bought more than one Sheen item".

Thanks for your time and consideration!