lThese letter balloons will help you spell out that special message you need to mark any occasion. Use them for birthdays, hen dos, anniversaries, graduation parties, baby showers and more! Choose from a huge selection of foil letter balloons in colours such as gold, silver, blue and pink. Choose from giant helium letter balloons or air-filled letter balloon options. If you're celebrating a milestone birthday add their age to your balloon display with our foil number balloons.