Fill a bunch of water balloons and then fill a kids pool or bucket and have a water balloon fight
DIY monster bubbles 11 C water 4 C dish soap (not antibacterial) 1 C corn syrup
I like this backdrop behind the table, obviously In the basketball theme and colors though. Baby Shower or bday: Balloons & Streamers Backdrop! Saving all the pink and purple ballons from my sons bday for this
Hosting A House Party For Clara's First Birthday
Balloon Garland - love this idea, no helium is a money saver!