How to String Popcorn and Cranberries...Will and I did this last year for Christmas and we just may do it again! It was so fun!
Also on these boards
How to String Popcorn on a Christmas Tree (with pictures)
Run a threaded needle through the tied end of the balloon to string them together. I would want to do this with just green and blue balloons for a cool ceiling decoration at your grad party. -Holly