What do you guys think?

[playfelt]

If you have real concerns with the balloons buy some tulle - the stuff used at weddings and is really cheap as once unfolded it is wide but get the fine mesh kind. Then cut pieces to wrap around the balloons and secure at the stem end with an elastic or weave and tie a thread in a tight knot. Then if a balloon breaks the pieces stay inside. The mesh also give grip for picking up the balloons. And the tulle would be reusable so just flatten and store till next time.