Balloon decor is not just for kid parties, they are actually making their way into a lot of special events as decorations especially weddings. They are a great way to add to the decor of your special day and a great way to decorate on the cheap. Most think of balloon decorations at a wedding tacky and in the past they have been but here are some tips on how to decorate with balloons so your special event is a classy one and not a tacky disaster! Tip 1. Use larger balloons instead of the standard small balloon.