The best day of the year has got to be 21 December! Because, as you surely know, the ugly Christmas sweater has its very own special day! It's celebrated on 21 December. But of course, you can wear an outfit as cool as this one throughout the Christmas season, not just on the 21st. So go ahead, jump aboard the trend and make your own ugly Christmas sweater to brighten the mood at all of this year's holiday festivities! Here's some inspiration. We used a hot glue gun and jewellery glue to attach the decorations. Remember to use a sweater you don't care about. If you use glue, you can't restore the sweater.