Doo Dah Parade Flyers Great, Brian Propp will be the Grand Marshal of Doo Dah Parade.  Propp will be available for autographs and pictures at the Ocean City Music Pier for an hour after the parade.  Dietz & Watson will return as the sponsor for this year’s event. Registration for anybody who would like to participate in the parade is open at ocnj.us/doodahparade.