Possible centerpiece idea. Tie balloons to current vases Balloon Centerpiece using mason jars.like this idea you can fill the jars with whatever you like - Candy for kids, shells, colored marbles, flowers, themed items. A Good idea to shelf.
Party entrance Idea- use golf tees to keep in ground. Cut strings to length & attach to golf tee's ahead of time, then attach the balloons that day. What a great idea! Could use to enclose an area for party privacy :)