Balloon Vase

Buy balloons on Amazon (paid link)
Buy an air pump on Amazon (paid link)

Balloon vase coul be a stand alone centerpiece and it could be a balloon hat!
Check balloon hats page and balloon weaving page for more ideas.

Willy Wonka balloon hat

One balloon flower vase

Balloon vase

How to make balloon vase

Uncle Sam balloon hat / balloon vase

Balloon umbrella