Here's an awesome little easter egg pointed out by Reddit user NoMoreHodoring. He discovered Gandalf's sword Glamdring as one of the many swords forged together to make the Iron Throne of the seven kingdoms in HBO's Game of Thrones.
It doesn't matter if it was purposely put there or not. I think it's just really cool that it found it's way into the throne! I found this over on io9, who offered up some fun fan story saying, "Did Aegon Targaryen, first of his name, conquer Middle-Earth on his way to battle the Andals of Westeros, and handed Gandalf his grey Istari ass? No man can say."
The thought of this makes me happy.