"Lily!" Al grumbled, whacking at the sparkles around his collar like flies, and when that didn't work, pulling the collar up to his nose to shield from them. "Hmph. They better be gone in ten seconds, or else! I did not dress for 'festive', I am not a bloody tree."
He stomped off, making a show of rearranging his collar to cover the worst of the shine, but for all of Al's grumbling, he never drew his wand to cast Finite Incantatem.