Moomin ceramic mug Moomin's Day is celebrated on 9th August which is Tove Janssons birthday. Arabia launched a new mug to mark this celebration. This beautiful special mug "Moomin's Day 2021" is illustrated with images from Tove Jansson's book Moominland in Midwinter depicting the first day of spring with Moomintroll and Moominmamma sitting on the bridge, waiting for Snufkin to return from his long winter travel.