You guys can't be serious...
KINGDOM HEARTS IS A GAME! Tis a collaboration between DISNEY INTERACTIVE and SQUARE-ENIX (also knows as Squenix sometimes). Tetsuya Nomura (did I spell it right?) is the director (is he not?) and he's MAKING IT UP with WRITERS!
MAN! I know it'd be cool if KH was real, but it ain't. By the by, those are KEYS. not keyblades. And if they are keyblades, they might have been put there recently for an advertisement campaign; Disney Land does have renovations, you know.
If not, it could have been a doodle some guy made that they decided to make into a DECORATION. Honestly, I doodle all the time and I could turn up something like that. They guy could have been inspired my keys for all we know; maybe he just came back from a locksmith (do they even exist anymore?).
Or it could be a family crest. Maybe someone in Disney had anscestors who were locksmiths and that was their family crest, and for commemoration purposes, they put it up.
Maybe it was a joke; Disney has the money to make useless things for no reason.
Also, the project is mainly Square-Enix's (it was developed in Japan mainly), so if anything, it should be a guy in Japan who's a keyblade master. But nobody is because it's just an idea people cooked up. It's only a GAME!
Sorry if I seem mean because some of you might be joking around, but some of you actually seem serious, and that's not good. As great as KH is, it's only a game. Honestly.