Happy birthday alphabet letter foil balloon with number foil balloon. Best balloons for birthday decoration. Best birthday decoration item for boys and girls. Blooms Mall Present (Number 20 ) Golden Balloon lets everyone know which big milestone event you're celebrating! You can combine this gold number balloon with other numbers for a custom look at a graduation, birthday, New Year's Eve party, or anniversary. The metallic finish of this gold number balloon makes it an eye-catching addition to the photo booth background at your event.