Mylar Valentine Balloon Assortment. Every celebration is more fun with balloons! Blow up all of these metallic Mylar balloons for a festive decoration at your Valentine’s Day party! You can also tie these heartfelt balloons to gift baskets for a unique treat your sweetheart will love. Don’t forget the helium and curling ribbon! (10 pcs. per set) 18" Assortment may vary.