String a needle through and hang! So easy.why have I never thought of this? Add glow sticks and you have awesome lights! I am going to do this with orange balloons and add glow sticks and pumpkin faces for trunk or treat.
Balloon Rockets - I've done this in several science camps I've conducted. Kids have fun with it. But, when the balloon deflates it may fall off the straw because it's surface area changes - another good thing to show and explain to kids.