"This is fantastic," William said, twirling his nightstick around in what would probably have been a cross between a tornado charm and an accidental levitation. The banshee wailing started right up and kept going, sliding up and down in pitch as he continued whirling it around. "Thank you, it's a brilliant addition."
He gave Pete's costume a second look-over and a grin. "And I think you're filling out your coconuts in a perfectly respectable fashion. What do Muggles expect, magic?"