"HAVE A VERY HARRY CHRISTMAS!"
-- Dobby's Christmas baubles (OP21)
Dobby takes it upon himself to decorate the D.A. classroom with mistletoe and one hundred golden ornaments bearing Harry’s face and the words “HAVE A VERY HARRY CHRISTMAS!” (OP21).
Dobby decorated sometime before the D.A. had their last meeting of term on the evening of Wednesday, 18 December.