A Festive Display For St. Patrick’s Day This Foil Happy St. Patricks Day Streamer is the perfect way to decorate your doorway for the occasion! Measuring about 7 feet once fully extended, this giant letter banner features a large St. Patrick’s Day greeting on a lanyard, punctuated by shamrocks in a shiny foil finish. The Foil Happy St. Patricks Day Streamer can easily be suspended anywhere using tape or hooks, making it ideal for office or classroom parties!