Single post in christmas accessory rerun

Check the update for Advent 2020 Quote from Niet: "The following will be available from December 25th 00:00 through December 31st 23:59... - The Christmas-themed Accessories, which were released during the 2013 Advent Calendar and haven't been available since, will appear in Scour Missions. Keep in mind that you want to find Accessories, and they are considered "common", which means you don't want to max out all of your boosts. You may have better chances sending your Pokémon to areas they dislike in order to make them less likely to find "rare" items!"