One 18 inch Baby Reveal Foil Balloon. What a wonderful way to reveal your big news! Fill latex balloons (in the appropriate baby color) with helium, and use them to surround your Baby Reveal Foil Balloon. Tape all of the balloon strings to the bottom of a large box wrapped in plain paper. Carefully close the box, but pull the Baby Reveal Foil Balloon out so it can float alone. Let Grandma or your Bestie open the box to complete your Baby Reveal Bouquet, so all of your guests can see what kind of little stranger will be coming along soon.