Blue's Clues Happy 1st Birthday Party Balloons Decoration Set Blue's Clues Happy 1st Birthday Party Balloons Decoration Set (1) 34" Blue Number One Balloon (2) 18" Blue's Clues Happy Birthday foil balloons (2) 18" Blue Star foil Balloon. Colors as Shown (3) 11" Dark Blue latex Balloons , (3) 11" Light Blue Latex Balloons