Add a Pyrdra Eye to the Game

This is purely for cosmetic purposes, but I wish pyrdra dropped an eye just like the other hydras. I like displaying boss "trophies" like those dropped by the original three or the hydra eyes. So, I (and my OCD) was greatly disappointed when pyrdra didn't drop an eye. I know the purpose of the eyes is to summon the next two bosses, but just like the drops from glurch, ghorm and malugaz, their primary drop becomes "useless" after activating their respective statues. So, it wouldn't be weird to add another drop that is like that.