The Fluff Festival, a celebration of that delicious Marshmallow Fluff spread, was postponed yesterday. However, the event will happen this afternoon, complete with a surely-exquisite performance by a burlesque troupe, The Flufferettes. Be not worried by the rain! The Somerville Arts Festival has set up tents! The Fluff Festival is Fangela Fangula's favorite Boston-metro event. Be there.......