Happy (belated) Felt Hat Day! Posted on 16 September 2009 by Carrie Cahill Mulligan 2 A felt hat is the perfect accessory for exploring the rainy ruins of Achill Island, Ireland. Apparently, yesterday was Felt Hat Day… who knew? (FYI: Two days ago was Cream-filled Doughnut Day, while today is Collect Rocks Day.) I hope yours was happy… I spent the better part of the day signing myself up for a Twitter account: @CCMFeltHats, if you like to tweet!