For one wild moment Harry thought they were S.P.E.W. badges — then he saw that they all bore the same message, in luminous red letters that burnt brightly in the dimly lit underground passage: SUPPORT CEDRIC DIGGORYTHE REAL HOGWARTS CHAMPION!
They were wearing large, red, luminous stars on their hats, all except Hagrid, who had his on the back of his moleskin vest.
Everlasting icicles had been attached to the banisters of the marble staircase; the usual twelve Christmas trees in the Great Hall were bedecked with everything from luminous holly berries to real, hooting, golden owls, and the suits of armor had all been bewitched to sing carols whenever anyone passed them.
There were luminous rosettes — green for Ireland, red for Bulgaria — which were squealing the names of the players, pointed green hats bedecked with dancing shamrocks, Bulgarian scarves adorned with lions that really roared, flags from both countries that played their national anthems as they were waved; there were tiny models of Firebolts that really flew, and collectible figures of famous players, which strolled across the palm of your hand, preening themselves.