Birthday Sprinkle Happy Birthday Round 18″ Foil Balloon. Sweeten up your party decor with our Foil Birthday Sprinkle Balloon. Printed on both sides with a vibrant Happy Birthday message, this helium-quality balloon would make a wonderful addition to any kid or adult birthday party. Combine this party balloon with solid latex balloons to create a rainbow balloon bouquet, or tie it individually to a party table, chair, balloon weight or birthday present.